Hobson KBH88GCM120040 M12 x 40mm Metric Hex Bolt and Nut, Class 8.8, Galvanised

This Hobson metric hex bolt and nut is M12 x 40mm, class 8.8, with a galvanised finish. It is supplied as a box of 75.

Hobson lists class 8.8 as high tensile, and its class and grade chart pairs class 8.8 with imperial grade 5 (manufacturer-stated).

The pitch shown is the coarse pitch given in the Hobson thread table (manufacturer-stated). The supplier lists metric fine pitch items as separate products and says so in the name.

Proof load and minimum tensile strength come from the Hobson head-marking guide for the class or grade and size range (manufacturer-stated).

Spanner sizes (A/F) are from the Hobson spanner selection chart (manufacturer-stated).

Where this product is used

• Bolt and nut sets for joining parts through a clearance hole
• Hex head tightened with a spanner or socket
• Choose length and thread form to suit the parts being joined

Features

• M12 x 40mm metric hex bolt and nut
• Class 8.8, Galvanised finish
• Supplied as a box of 75
• Proof load and minimum tensile strength by size, from the Hobson guide (manufacturer-stated)
• Spanner size (A/F) by size, from the Hobson spanner chart (manufacturer-stated)
• Supplied as a bolt and nut

Key specifications

Selecting the right option

Choose the thread form first: the nut must match the bolt in thread form, diameter and pitch. Metric sizes are the nominal diameter in millimetres; compare the pitch in the table with your nut. Length is measured from under the head to the end of the bolt. Strength figures are the class or grade minimums from the Hobson head-marking table, so treat them as the minimum for the class or grade and not a test result for the item (manufacturer-stated).

Related products

Related hex bolts: Hobson Metric Hex Bolt and Nut, Class 8.8, Plain, M6 to M36 x 16 to 300mm, Hobson Purlin Hex Bolt, Nut and Washer, Class 8.8, Hot Dip Galvanised, M12 x 30mm, Box of 150 and Hobson Metric Hex Bolt and Nut, Class 8.8, Hot Dip Galvanised, M8 to M16 x 20 to 50mm.