Thinking of selling your home? Energy efficiency could be your secret weapon ⚡ Next year, NSW will trial disclosing energy efficiency ratings in sale and lease contracts before making it mandatory. Real Estate Institute of Australia director Jacob Caine was quoted in the AFR last week saying: “For owners with lower [energy efficiency] rankings today, their property is worth less than they think it is… There’s absolutely no doubt this will become a key indicator for the buying public out there and the selling public.” But it’s not just an issue for homeowners. Lenders will also want to reduce the emissions and insurance risks of assets in their mortgage portfolios. You can read the full article below ? Ready to cut your energy bills, increase the value of your home, and access a cheaper mortgage? Visit 28watt.com.au to see how we can help!

Aircraft nuts are made in a variety of shapes and sizes. They are made of cadmium plated carbon steel, stainless steel, or anodized 2024T aluminum alloy, and may be obtained with either right or left-hand threads. No identifying marking or lettering appears on nuts. They can be identified only by the characteristic metallic luster or color of the aluminum, brass, or the insert when the nut is of the selflocking type. They can be further identified by their construction.

Selflocking nuts are used on aircraft to provide tight connections which will not shake loose under severe vibration. Do not use selflocking nuts at joints which subject either the nut or bolt to rotation. They may be used with antifriction bearings and control pulleys, provided the inner race of the bearing is clamped to the supporting structure by the nut and bolt. Plates must be attached to the structure in a positive manner to eliminate rotation or misalignment when tightening the bolts or screws.

The plain check nut, AN316, is employed as a locking device for plain nuts, set screws, threaded rod ends, and other devices.

SB® 175 Standard Housings. The second to largest SB® housings work with wire contacts up to 1/0. AWG (53.4 mm²) as well as busbar contacts.

Renewable Energy: A Smart Choice for Homeowners! ? The latest draft GenCost report from CSIRO and Australian Energy Market Operator (AEMO) highlights the energy future for Australia, and the message is clear: renewables and energy storage lead the way for affordability and reliability. Key Takeaways for Homeowners: 1️⃣ Nuclear power is no faster or cheaper than renewable alternatives. In fact, nuclear projects take over 15 years to build, and costs keep rising. 2️⃣ Renewables like solar and wind, paired with modern storage solutions, offer similar benefits with shorter project timelines and lower costs. Battery prices are dropping fast—down by 20% last year alone! This makes renewable energy storage more accessible and affordable for families. 3️⃣ Energy experts agree that the path forward is new renewable energy, supported by reliable storage options like batteries and pumped hydro. It’s not just about the environment—it’s about making the smart financial choice for your home. ? Curious about what these advancements could mean for your household? Discover how upgrading to sustainable energy can slash your bills and add value to your home. ? Take a minute to start your free home energy assessment today on our website - see link in comments. #renewableenergy #homeenergyupgrades #greenfinancing #energybillsavings https://lnkd.in/g9h_6z6p

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? Heatwave Alert: Stay Cool and Save Energy! As temperatures soar, the NSW Government is encouraging households to reduce electricity usage during peak hours (3 PM to 8 PM) to ease pressure on the power grid. ?Did you know upgrading your home’s energy efficiency can help you stay ahead of such challenges? Here’s how: 1️⃣ Battery storage systems: Store energy during off-peak times to power your home when demand (and costs) are highest. 2️⃣ Energy-efficient upgrades: Reduce your overall consumption without compromising comfort. At 28Watt, we simplify the transition to an energy-smart home. Start your free home assessment today and discover tailored solutions to reduce energy bills, future-proof your home, and live sustainably. ? Start Your Free Home Assessment Today: https://www.28watt.com.au Let’s make your home a cooler, more energy-efficient haven.

The digit (or two digits) following the dash or the material code letter is the dash number of the nut, and it indicates the size of the shank and threads per inch of the bolt on which the nut will fit. The dash number corresponds to the first figure appearing in the part number coding of general purpose bolts. A dash and the number 3, for example, indicates that the nut will fit an AN3 bolt (10-32); a dash and the number 4 means it will fit an AN4 bolt (1/4-28); a dash and the number 5, an AN5 bolt (5/16-24); and so on.

MS21042-7

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AN350 = aircraft wingnut.  B = brass.  10 = number 10 bolt.  32 = threads per inch.

An NutSize Chart

Noting that electrification of our homes is one the best ways to bring down emissions and bills, I looked at what Australian states were doing to help their residents get off gas and electrify their homes. Tasmania ranks as the best state for electrification policy, with incentives for electrification for electrification including batteries, induction cooking, heat pumps, and aircon, all part of their zero-interest loan scheme (The ACT while not a state also offers a similar loan scheme). All other states except WA are offering a range of different subsidies or loans. WA is sadly a standout for inaction in this space offering nothing that I could find. This was a bit of a complex trawl of multiple government websites to pull this together (thanks Lucinda for the first draft) so we might have missed some bits so feel free to correct us and we will correct, update, and reshare. But here's to a 2025 that accelerates the renewable energy and electrification journey.

The single row tapered roller bearing is available in metric dimensions (ISO 355 and JIS B 1512 standards) and in inches (ABMA standard, metric series ...

The light hex nut, AN340 and AN345 (fine and coarse thread), is a much lighter nut than the plain hex nut and must be locked by an auxiliary device. It is used for miscellaneous light tension requirements.

The two general types of selflocking nuts currently in use are the all metal type and the fiber lock type. For the sake of simplicity, only three typical kinds of selflocking nuts are considered in this handbook: The Boots selflocking and the stainless steel selflocking nuts, representing the all metal types; and the elastic stop nut, representing the fiber insert type.

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By electrifying your appliances, you can enjoy lower energy bills and a healthier home. But it doesn't have to be done all at once. Lori, mum of two, is slowly upgrading her home. Lori replaced her gas ducted heating to reverse cycle AC and saved $400 on her winter bill this year. Next up, she's upgrading her ageing gas hot water heating system. "Once we've fully electrified our house, I'm going to throw a party. It's going to be my reward for getting off gas."? Have you made a plan about which gas-powered appliance you will electrify next? #electrifyeverything

After the nut has been tightened, make sure the rounded or chamfered end of the bolts, studs, or screws extends at least the full round or chamfer through the nut. Flat end bolts, studs, or screws should extend at least 1/32 inch through the nut. Bolts of 5/16 inch diameter and over with cotter pin holes may be used with selflocking nuts, but only if free from burrs around the holes. Bolts with damaged threads and rough ends are not acceptable. Do not tap the fiber locking insert. The selflocking action of the elastic stop nut is the result of having the bolt threads impress themselves into the untapped fiber.

The Boots selflocking nut is of one piece, all metal construction, designed to hold tight in spite of severe vibration. Note in figure 6-7 that it has two sections and is essentially two nuts in one, a locking nut and a load carrying nut. The two sections are connected with a spring which is an integral part of the nut.

Two commercial types of high strength internal or external wrenching nuts are available; they are the internal and external wrenching elastic stop nut and the Unbrako internal and external wrenching nut. Both are of the selflocking type, are heat treated, and are capable of carrying high strength bolt tension loads.

Letters and digits following the part number indicate such items as material, size, threads per inch, and whether the thread is right or left hand. The letter "B" following the part number indicates the nut material to be brass; a "D" indicates 2017-T aluminum alloy; a "DD" indicates 2024-T aluminum alloy; a "C" indicates stainless steel; and a dash in place of a letter indicates cadmium plated carbon steel.

Normally, elastic stop nuts can be used many times with complete safety and without detriment to their locking efficiency. When reusing elastic stop nuts, be sure the fiber has not lost its locking friction or become brittle. If a nut can be turned with the fingers, replace it.

The castle nut, AN310, is used with drilled shank AN hex head bolts, clevis bolts, eyebolts, drilled head bolts, or studs. It is fairly rugged and can withstand large tensional loads. Slots (called castellations) in the nut are designed to accommodate a cotter pin or lock wire for safety.

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ANhardware Chart

The castellated shear nut, AN320, is designed for use with devices (such as drilled clevis bolts and threaded taper pins) which are normally subjected to shearing stress only. Like the castle nut, it is castellated for safetying. Note, however, that the nut is not as deep or as strong as the castle nut; also that the castellations are not as deep as those in the castle nut.

Do not install elastic stop nuts in places where the temperature is higher than 250° F, because the effectiveness of the selflocking action is reduced beyond this point. Selflocking nuts may be used on aircraft engines and accessories when their use is specified by the engine manufacturer.

The plain hex nut, AN315 and AN335 (fine and coarse thread), is of rugged construction. This makes it suitable for carrying large tensional loads. However, since it requires an auxiliary locking device such as a check nut or lockwasher, its use on aircraft structures is somewhat limited.

Jet Nuts

As their name implies, selflocking nuts need no auxiliary means of safetying but have a safetying feature included as an integral part of their construction. Many types of selflocking nuts have been designed and their use has become quite widespread. Common applications are: (1) Attachment of antifriction bearings and control pulleys; (2) Attachment of accessories, anchor nuts around inspection holes and small tank installation openings; and (3) Attachment of rocker box covers and exhaust stacks. Selflocking nuts are acceptable for use on certificated aircraft subject to the restrictions of the manufacturer.

Thus, the spring, through the medium of the locking section, exerts a constant locking force on the bolt in the same direction as a force that would tighten the nut. In this nut, the load carrying section has the thread strength of a standard nut of comparable size, while the locking section presses against the threads of the bolt and locks the nut firmly in position. Only a wrench applied to the nut will loosen it. The nut can be removed and reused without impairing its efficiency.

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Sheet spring nuts, such as speed nuts, are used with standard and sheet metal selftapping screws in nonstructural locations. They find various uses in supporting line clamps, conduit clamps, electrical equipment, access doors, and the like, and are available in several types. Speed nuts are made from spring steel and are arched prior to tightening. This arched spring lock prevents the screw from working loose. These nuts should be used only where originally used in the fabrication of the aircraft.

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Anlocknut chart

Aircraft nuts can be divided into two general groups: Nonselflocking and selflocking nuts. Nonselflocking nuts are those that must be safetied by external locking devices, such as cotter pins, safety wire, or locknuts. Selflocking nuts contain the locking feature as an integral part.

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The code numbers for selflocking nuts end in three or four digit numbers. The last two digits refer to threads per inch, and the one or two preceding digits stand for the nut size in 16ths of an inch.

ANbolt code

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Selflocking nut bases are made in a number of forms and materials for riveting and welding to aircraft structure or parts. (See figure 6-10.) Certain applications require the installation of selflocking nuts in channels, an arrangement which permits the attachment of many nuts with only a few rivets. These channels are track-like bases with regularly spaced nuts which are either removable or nonremovable. The removable type carries a floating nut, which can be snapped in or out of the channel, thus making possible the easy removal of damaged nuts. Nuts such as the clinch-type and spline-type which depend on friction for their anchorage are not acceptable for use in aircraft structures.

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AN320 = aircraft castellated shear nut, cadmium plated carbon steel.  10 = 5/8 inch diameter, 18 threads per inch (this nut is usually right-hand thread).

7 16-20 JetNut

AN310 = aircraft castle nut.  D = 2024-T aluminum alloy.  5 = 5/16 inch diameter.  R = right-hand thread (usually 24 threads per inch).

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Nearly all elastic stop nuts are steel or aluminum alloy. However, such nuts are available in practically any kind of metal. Aluminum alloy elastic stop nuts are supplied with an anodized finish. Steel nuts are cadmium plated.

Most of the familiar types of nuts, including the plain nut, the castle nut, the castellated shear nut, the plain hex nut, the light hex nut, and the plain check nut are the nonselflocking type.

The wing nut, AN350, is intended for use where the desired tightness can be obtained with the fingers and where the assembly is frequently removed.

Nuts and bolts

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The elastic stop nut is a standard nut with the height increased to accommodate a fiber locking collar. This fiber collar is very tough and durable and is unaffected by immersion in hot or cold water or ordinary solvents such as ether, carbon tetrachloride, oils, and gasoline. It will not damage bolt threads or plating.  The fiber locking collar is not threaded and its inside diameter is smaller than the largest diameter of the threaded portion or the outside diameter of a corresponding bolt. When the nut is screwed onto a bolt, it acts as an ordinary nut until the bolt reaches the fiber collar. When the bolt is screwed into the fiber collar, however, friction (or drag) causes the fiber to be pushed upward. This creates a heavy downward pressure on the load carrying part and automatically throws the load carrying sides of the nut and bolt threads into positive contact. After the bolt has been forced all the way through the fiber collar, the downward pressure remains constant. This pressure locks and holds the nut securely in place even under severe vibration. Nearly all elastic stop nuts are steel or aluminum alloy. However, such nuts are available in practically any kind of metal. Aluminum alloy elastic stop nuts are supplied with an anodized finish. Steel nuts are cadmium plated. Normally, elastic stop nuts can be used many times with complete safety and without detriment to their locking efficiency. When reusing elastic stop nuts, be sure the fiber has not lost its locking friction or become brittle. If a nut can be turned with the fingers, replace it. After the nut has been tightened, make sure the rounded or chamfered end of the bolts, studs, or screws extends at least the full round or chamfer through the nut. Flat end bolts, studs, or screws should extend at least 1/32 inch through the nut. Bolts of 5/16 inch diameter and over with cotter pin holes may be used with selflocking nuts, but only if free from burrs around the holes. Bolts with damaged threads and rough ends are not acceptable. Do not tap the fiber locking insert. The selflocking action of the elastic stop nut is the result of having the bolt threads impress themselves into the untapped fiber. Do not install elastic stop nuts in places where the temperature is higher than 250° F, because the effectiveness of the selflocking action is reduced beyond this point. Selflocking nuts may be used on aircraft engines and accessories when their use is specified by the engine manufacturer. Selflocking nut bases are made in a number of forms and materials for riveting and welding to aircraft structure or parts. (See figure 6-10.) Certain applications require the installation of selflocking nuts in channels, an arrangement which permits the attachment of many nuts with only a few rivets. These channels are track-like bases with regularly spaced nuts which are either removable or nonremovable. The removable type carries a floating nut, which can be snapped in or out of the channel, thus making possible the easy removal of damaged nuts. Nuts such as the clinch-type and spline-type which depend on friction for their anchorage are not acceptable for use in aircraft structures. Sheet Spring Nuts Sheet spring nuts, such as speed nuts, are used with standard and sheet metal selftapping screws in nonstructural locations. They find various uses in supporting line clamps, conduit clamps, electrical equipment, access doors, and the like, and are available in several types. Speed nuts are made from spring steel and are arched prior to tightening. This arched spring lock prevents the screw from working loose. These nuts should be used only where originally used in the fabrication of the aircraft. Internal and External Wrenching Nuts Two commercial types of high strength internal or external wrenching nuts are available; they are the internal and external wrenching elastic stop nut and the Unbrako internal and external wrenching nut. Both are of the selflocking type, are heat treated, and are capable of carrying high strength bolt tension loads. Identification and Coding Part numbers designate the type of nut. The common types and their respective part numbers are: Plain, AN315 and AN335; castle AN310; plain check, AN316; light hex, AN340 and AN345; and castellated shear, AN320. The patented selflocking types are assigned part numbers ranging from MS20363 through MS20367. The Boots, the Flexloc, the fiber locknut, the elastic stop nut, and the selflocking nut belong to this group. Part number AN350 is assigned to the wing nut. Letters and digits following the part number indicate such items as material, size, threads per inch, and whether the thread is right or left hand. The letter "B" following the part number indicates the nut material to be brass; a "D" indicates 2017-T aluminum alloy; a "DD" indicates 2024-T aluminum alloy; a "C" indicates stainless steel; and a dash in place of a letter indicates cadmium plated carbon steel. The digit (or two digits) following the dash or the material code letter is the dash number of the nut, and it indicates the size of the shank and threads per inch of the bolt on which the nut will fit. The dash number corresponds to the first figure appearing in the part number coding of general purpose bolts. A dash and the number 3, for example, indicates that the nut will fit an AN3 bolt (10-32); a dash and the number 4 means it will fit an AN4 bolt (1/4-28); a dash and the number 5, an AN5 bolt (5/16-24); and so on. The code numbers for selflocking nuts end in three or four digit numbers. The last two digits refer to threads per inch, and the one or two preceding digits stand for the nut size in 16ths of an inch. Some other common nuts and their code numbers are: Code Number AN310D5R: AN310 = aircraft castle nut.  D = 2024-T aluminum alloy.  5 = 5/16 inch diameter.  R = right-hand thread (usually 24 threads per inch). Code Number AN320-10: AN320 = aircraft castellated shear nut, cadmium plated carbon steel.  10 = 5/8 inch diameter, 18 threads per inch (this nut is usually right-hand thread). Code Number AN350B1032: AN350 = aircraft wingnut.  B = brass.  10 = number 10 bolt.  32 = threads per inch.

Part numbers designate the type of nut. The common types and their respective part numbers are: Plain, AN315 and AN335; castle AN310; plain check, AN316; light hex, AN340 and AN345; and castellated shear, AN320. The patented selflocking types are assigned part numbers ranging from MS20363 through MS20367. The Boots, the Flexloc, the fiber locknut, the elastic stop nut, and the selflocking nut belong to this group. Part number AN350 is assigned to the wing nut.

Boots selflocking nuts are made with three different spring styles and in various shapes and sizes. The wing type, which is the most common, ranges in size for No. 6 up to 1/4 inch, the Rol-top ranges from 1/4 inch to 1/6 inch, and the bellows type ranges in size from No. 8 up to 3/8 inch. Wing-type nuts are made of anodized aluminum alloy, cadmium plated carbon steel, or stainless steel. The Rol-top nut is cadmium plated steel, and the bellows type is made of aluminum alloy only.  Elastic Stop Nut

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