M6 x 30 mm Hex Bolt, 304 Stainless Steel - XHBA2M6X30

Made in 304 (A2) stainless steel, the Metric Hex Bolt is a hex head bolt tightened with a spanner or socket. Unlike a hex set bolt, which is threaded full length, a hex bolt is partly threaded with a plain shank under the head, so the thread length is set by the bolt length.

Made from 304 (A2) stainless steel, a standard austenitic grade with good everyday corrosion resistance. It is a sound choice away from the coast; in chloride-exposed settings, step up to 316 (A4). Metric sizes are written M followed by the nominal thread diameter in millimetres, so M10 is a 10 mm thread.

The range runs to 125 variants, covering sizes M6 to M24 and lengths 30 mm to 200 mm. Pack quantities depend on size: packs of 10 to 100.

Austenitic stainless steel is generally non-magnetic, although cold-worked parts can show weak magnetism. Stainless threads can gall (seize) when tightened under load or at speed. A smear of anti-seize on the thread and a steady tightening speed reduce the risk.

Where this product is used

• Fresh water and general outdoor fittings
• Fixings through steel, aluminium and timber with a nut and washer
• Larger sizes for frames, plant and structural fixings
• Outdoor furniture, playground and architectural metalwork
• Small sizes for enclosures, instruments and light fittings
• Food, beverage and chemical plant fittings

Features

• Supplied in packs of 10 to 100
• A2 (304) stainless steel for indoor, fresh water and general outdoor use
• Lengths from 30 mm to 200 mm
• Choice of 125 sizes, M6 to M24
• Hex head for spanner or socket tightening
• Plain shank under the head for shear loads

Key specifications

Selecting the right option

Choose a length that leaves at least one full thread showing past the nut and keeps the thread out of the shear plane where the joint is loaded sideways. Use a stainless flat washer under the head and the nut, and 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: Metric Hex Bolt - 316 Stainless Steel.

Related products

Also available: UNC Hex Bolt - 316 Stainless Steel and UNC Hex Bolt - 304 Stainless Steel. Matching products: Metric Standard Hex Nut - 304 Stainless Steel, Metric Hex Lock Nut - 304 Stainless Steel (M4 to M20) and Metric Hex Nylon Insert Lock Nut - 304 Stainless Steel.