2 1/2" Nuts

FEATURES AND ADVANTAGES. Versatile threaded hose connectors designed for suction and discharge applications. Male ends supplied with NST threads (National Fire Hose Straight Threads). Cylindrical studs or "pins" positioned on the outside rim of the coupling allowing the use of a spanner wrench to... [See More]

• Size: 2 1/2"; 2 1/2

• Material: Aluminum; Bronze

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]

• 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
• Material: Steel

• Type: Hex Nut; Nylon Insert Nut (optional feature); Locknut (optional feature); Other (optional feature); Optional Nylon Inserts and Patches
• Finish: Zinc Plated; Plain

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]

• Size: 2 1/2"; 2 1/2

• Type: Wing Nut

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]

• 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
• Material: Steel

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

• Size: 2 1/2"
• Material: Stainless Steel

• Type: Hex Nut

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]

• 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"
• Material: Steel (optional feature); Stainless Steel (optional feature); Plastic (optional feature); Nylon (optional feature); Alloy Steel

• Type: Hex Nut
• 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]

• 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"
• Material: Bronze (optional feature); Stainless Steel (optional feature); Carbon Steel

• Type: Coupling Nut
• Finish: Zinc Clear