3" Nuts

FEATURES AND ADVANTAGES. Designed for use in medium to high-pressure applications using steam, air, and fluids. The metal-to-metal design provides for optimum sealing at high temperatures. Used in conjunction with interlocking bolt clamps. Couplings with hose barbs come with an interlocking collar... [See More]

• Type: Wing Nut

• Size: 3

HEAVY HEX NUTS. As part of our premium line of hex nut products, National Bolt & Nut offers a wide range of heavy hex nuts in various grades, finishes, threads, and sizes to meet your unique application requirements. Meeting ANSI B18.2.2 dimensional requirements, heavy hex nuts are popular for... [See More]

• Type: Hex Nut; Nylon Insert Nut (optional feature); Locknut (optional feature); Other (optional feature); Optional Nylon Inserts and Patches
• Material: Steel

• Size: 1/4"; 5/16"; 3/8"; 7/16"; 1/2"; 5/8"; 3/4"; 7/8"; 1"; 1 1/8"; 1 1/4"; 1 3/8"; 1 1/2"; 1 3/4"; 2"; 2 1/4"; 2 1/2"; 2 3/4"; Size Range: 1/4" - 5", Fine and Course Threads
• Finish: Zinc Plated; Plain

FEATURES AND ADVANTAGES. Durable 304 stainless steel. Acme 8TPI thread (1" - 3"), Acme 6TPI thread (4"). For use with FBS-SS series fittings. Durable 304 stainless steel. Acme 8TPI thread (1" - 3"), Acme 6TPI thread (4"). For use with FBS-SS series fittings. [See More]

• Type: Hex Nut

• Material: Stainless Steel

HEAVY HEX SLOTTED NUTS. Dimensions per ANSI B18.2.2. Nylon inserts and Nuts with patches also available as an option on the Request for Information form. Other materials and finishes available. For further information, call or send an information request. In conjunction with our selection of bolts... [See More]

• Type: Castle Nut; Hex Nut; Nylon Insert Nut (optional feature); Locknut; Other (optional feature); Optional Nylon Inserts and Patches
• Material: Steel

• Size: 1/2"; 5/8"; 3/4"; 7/8"; 1"; 1 1/8"; 1 1/4"; 1 3/8"; 1 1/2"; 1 3/4"; 2"; 2 1/4"; 2 1/2"; 2 3/4"; Size Range: 1/4" - 5", Fine and Course Threads
• Finish: Plain

A nut is a type of fastener with a threaded hole. Nuts are almost always used opposite a mating bolt to fasten parts together. The two components work together by a combination of friction between the threads, a slight stretch of the bolt, and compression of the mating parts. Nuts are graded with... [See More]

• Type: Hex Nut
• Material: Steel (optional feature); Stainless Steel (optional feature); Plastic (optional feature); Nylon (optional feature); Alloy Steel

• Size: 1/4"; 5/16"; 3/8"; 7/16"; 1/2"; 5/8"; 3/4"; 7/8"; 1"; 1 1/8"; 1 1/4"; 1 3/8"; 1 1/2"; 1 3/4"; 2"; 2 1/4"; 2 1/2"; 2 3/4"
• Standards: ASME/ANSI (optional feature); SAE (optional feature); ASTM

Coupling nuts are sometimes known as extension nuts. These fully threaded nuts are used with threaded rod in a variety of applications; from leveling, to spacing, to joining two or more studs. [See More]

• Type: Coupling Nut
• Material: Bronze (optional feature); Stainless Steel (optional feature); Carbon Steel

• Size: #4; #6; #8; #10; 1/4"; 5/16"; 3/8"; 7/16"; 1/2"; 5/8"; 3/4"; 7/8"; 1"; 1 1/8"; 1 1/4"; 1 3/8"; 1 1/2"; 1 3/4"; 2"; 2 1/4"; 2 1/2"; 2 3/4"; 9/16"
• Finish: Zinc Clear