Allen Head Bolt Size Chart

Eye bolts a bolt with a circular ring on the head end.

Allen head bolt size chart.

Our chart features all the regular sized allen wrenches for both sae metric. Therefore all you have to do is look at a hex bolt dimensions chart and you will find everything you need to know. Flange bolts flange bolts have a flange on the bottom of the head that distributes the load like a washer. As you ll notice there isn t always a perfect substitute.

Well good news is that fasteners are made to universal specifications that are known globally. Screw diameter drive size. U bolts and eye bolts anchor bolts bent bolts 11 1 a bolts standard 11 2 u bolts long tangent 11 3 eyebolts regular pattern 11 4 eyebolts shoulder pattern 11 5 rod end eyebolt blanks 11 6 metric fasteners hex head cap screws 12 1 weights of hex head cap screws 12 2 socket cap screws flat head socket caps 12 3. Dimensional table of allen din 912 bolt.

Hex bolt dimensions hex cap screw dimensions. Choose from our selection of allen bolts including alloy steel socket head screws 18 8 stainless steel socket head screws and more. Have you ever wondered how thick is the head of the bolt that i just bought. If you re looking for a list of every common allen wrench size you ve found it.

The m3 and m4 nominal screw sizes have two drilled holes spaced 180 degrees apart. In stock and ready to ship. Nominal screw sizes m5 and larger have six drilled holes spaced 60 degrees apart unless the purchaser specifies two drilled holes. While large sized allen wrenches do exist they are only used in a very specialized applications.

This chart contains information on number metric and fractional number socket head cap screws along with tap drill information. Standard allen wrench sizes. Print this page. On the left hand side we have our sae to metric conversion guide for hex keys that provides the best substitute sae allen wrench for each given metric size.

Thread metric d thread length b head diameter dk min dk max head high k min k max key width s nominal s min tmin. Imperial to metric for allen keys. Lag bolts bolts with a wood thread and pointed tip. Socket screws socket screws also known as allen head are fastened with a hex allen wrench.

Drilled head metric hexagon socket head cap screws normally are not available in screw sizes smaller than m3 nor larger than m36.