Allen Bolt Head Size Formula

Hex bolt head dimensions.

Allen bolt head size formula.

Available in a range of sizes from m2 to m42 and din 933. Trying to make sense of all the different screw and bolt thread lengths can be a real challenge even for the most knowledgeable of professionals. Metric bolt head wrench size. Us hex bolts inches ansi asme b18 2 1 dimensions of hex bolts imperial units.

Us machine screws dimensions machine screw diameters. Print this page. Where l is the total bolt length and d nom is the nominal bolt diameter. Bolt diameter head and wrench size.

Choose from our selection of allen bolts including alloy steel socket head screws 18 8 stainless steel socket head screws and more. Bolt diameter mm head wrench size mm ansi iso din. Us hex bolts metric ansi asme b18 2 3m dimensions of hex bolts metric units. A metric iso screw thread is designated by the letter m followed by the value of the nominal diameter d the maximum thread diameter and the pitch p both expressed in millimetres and separated by the hyphen sign e g m8 1 25.

Size diam ete r hex key size 6605 n. If the pitch is the normally used coarse pitch listed in iso 261 or iso 262 it can be omitted e g m8. Follow the instructions in step 2 to find the wrench size to use for this bolt. Hex bolt lag bolt.

Measure the outside diameter of the bolt s threads using a vernier caliper if the bolt is installed in your vehicle or piece of equipment and the bolt s head is not accessible to the vernier caliper. Us bolts head and wrench sizes hex bolt lag bolt square bolt and heavy hex bolt. Also available from the nut place. Print this page.

The following table of hex bolt head dimensions was adapted from asme b18 6 7m table 14 dimensions of hex head machine screws this table is used for smaller size hardware. Gessner houston tx 77040 4015 ph. Get a quote for hex anchor bolts head hex bolts and all kinds of bolts or just call our sales team now. In stock and ready to ship.