1/2" x 1-1/2" UNC Hex Set Bolt, 304 Stainless Steel - XHSA212UNCX112

Made in 304 (A2) stainless steel, the UNC Hex Set Bolt (Full Thread) is a hex head bolt threaded along its full length (also sold as a hex set screw). The full thread lets it run right up to the head and suits tapped holes and thin joints.

You can choose from 74 variants, covering sizes 1/4" to 3/4" and lengths 3/8" to 4". Pack quantities depend on size: packs of 25 to 100.

A2 (304) stainless steel is the common general-purpose austenitic grade. It resists corrosion well indoors, in fresh water and in most general outdoor conditions, but it is not recommended where chlorides are present, such as coastal, pool and marine settings. Choose A4 (316) there. UNC (Unified National Coarse) is the coarse inch-based thread. Small sizes are given as a number and threads per inch, such as 8-32 or 10-24, and larger sizes as fractions of an inch.

Austenitic stainless steel is generally non-magnetic, although cold-worked parts can show weak magnetism. In wet conditions, keep stainless steel apart from aluminium and galvanised steel with a washer or sleeve, to reduce the risk of galvanic corrosion.

Where this product is used

• Food-service and light food-handling equipment
• Food and beverage equipment
• Screwing into tapped holes in machinery, brackets and plates
• Signs, furniture and fittings
• Small sizes for enclosures, instruments and light fittings
• Thin sections where a partly threaded bolt would not clamp

Features

• Lengths from 3/8" to 4"
• Threaded full length for tapped holes and thin joints
• A2 (304) stainless steel for indoor, fresh water and general outdoor use
• Hex head for spanner or socket tightening
• Pack quantities to suit trade and bulk buying: packs of 25 to 100
• Range covers 1/4" to 3/4" in 74 variants

Key specifications

Selecting the right option

A fully threaded bolt is the usual choice for tapped holes. Where the joint is loaded sideways, a partly threaded hex bolt keeps a plain shank in the shear plane. Use anti-seize on the thread, because stainless threads can gall when tightened. Near the coast, around pools or in marine settings, use the A4 (316) version instead: UNC Hex Set Bolt (Full Thread) - 316 Stainless Steel.

Related products

Also available: BSW Hex Set Bolt (Full Thread) - 316 Stainless Steel and Metric Hex Set Bolt (Full Thread) - 316 Stainless Steel. Matching products: UNC Standard Hex Nut - 304 Stainless Steel, UNC Hex Lock Nut - 304 Stainless Steel and UNC Hex Nylon Insert Lock Nut - 304 Stainless Steel.