Hex Bolt, Hex Head Bolt, Cap Screw, Hex Cap Screw, Hex Head Cap
Screw, Machine Bolt, Hex Machine Bolt, Hex Head Machine Bolt;
Tap Bolt, Hex Tap Bolt, Hex Head Tap Bolt if fully threaded
Sizes Available
1/4" to 4"
Thread Type(s)
Machine Screw
Threads per Inch
20 to 6 for UNC (Coarse) and 28 to 12 for UNF (Fine)
Thread Direction(s)
Right-Hand
Point Style(s)
Not pointed or chamfered to protect first thread and facilitate entry
into internally threaded part
Lengths Available
3/8" to 24"
Measurement System
Inch Series
Common Drive Style(s)
Hex Head
Common Head Style(s)
Hex Head
Common Grade(s)
For Steel Bolts: ASTM A307, SAE Grades 2, 5, 8; also non-standard
Grade 9