Allen Bolt

Allen bolt also known as socket head cap screw is one of the most common type of bolt in industries or most specifically the most common machinery bolt. Allen bolt is manufactured partially threaded according to DIN912 standard but due to the market demand also fully threaded Allen bolts are used. socket head cap screws are manufactured in different grades of carbon steel and stainless steel. carbon steel grade of 8.8 with tensile strength of about 800 N/mm2 and also 12.9 with tensile strength of 1180 N/mm2 are the most common and used grades of Allen bolts. most cap head screws are produced with COARSE threads and are attached using standard hex nuts of DIN934 same as hex bolts.

Allen bolt 5.6

8.8 Allen Bolt

Stainless steel Allen Bolt

Partially threded Allen bolt

Galvanized Allen Bolt

Allen bolt, grade 8.8, size M8x30

Allen bolt, grade 8.8, size M10x20

Allen bolt, grade 8.8, size M10x30

Allen bolt, grade 8.8, size M10x40

Allen bolt, grade 8.8, size M12x30

Allen Bolt, Grade 8.8, Size M12x50

M16X40 allen bolt 8.8

M6X30 g8 flat allen screw

M6X40 allen screw DIN 7991

M8X40 allen screw DIN7991

M10X30 G8 allen screw

M10X40 allen screw din 7991

M6X30 304 allen screw

M8X40 stainles steel allen screw

M8X50 304 stainless steel allen bolt

M10X40 A2 allen screw

M10X50 stainless steel allen screw

Comparison of Allen bolts and Hex bolts

Allen bolts have similar mechanical properties as hex bolts in terms of application and strength however they are manufactured following the DIN912 standard that determines the head and cap size of Allen bolts based on the bolt diameter. in general, the real advantage of Allen bolts over hex bolts is the easier way of fastening and opening them since the driver head is place properly within the hole of Allen bolts as opposed to the hex bolts that the driver is bound to slip from the edge of the bolt. both types of industrial bolts hex and Allen bolts are fastened along with standard DIN934 hex bolts following the grade of bolt.