An externally threaded fastener with unified threads, a cylindrical head with a chamfered top surface, knurled cylindrical sides and hexagonal recess,
5Pcs UNC BSW 7/16-14 DIN912 Grade 12.9 Alloy Steel Black Hexagon Socket Knurled Cap Head Screw Cap Head Bolt with Partial Thread - AliExpress
Serval Products 1/4-20 X 1-1/2 Left Hand (Reverse) Thread Socket Head (Allen) Cap Screw Alloy Steel Full Thread (1 EA) : Industrial & Scientific
Socket Head Cap Screw, 1/4-20 X 3/4, Alloy Steel, Black Oxide, Hex Socket Coarse Thread, 1/4 Inch Hexagonal Allen Bolt, Length: 3/4 Inch, Full Thread
Socket Head Cap Screw, 14-20 x 1 34, Alloy India
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3/8-16 x 1 Socket Head Cap Screws, Stainless Steel 18-8 Black Oxide, Allen Hex Drive, Fully Threaded, 10 PCS: : Industrial & Scientific
Socket Head Cap Screws & Nuts, Steel
1/4-20 Low Head Socket Cap screws - Monster Bolts
Socket Head Cap Screw, 1/4-20 x 1 3/4, Alloy Steel, Black Oxide, Hex Socket (Quantity: 100) Coarse Thread, 1/4 inch Hexagonal Allen Bolt, Length: 1 3/4 inch, Partial Thread: : Industrial & Scientific
1/4-20 U.S. / Inch ”‚ Alloy Steel Socket Head Cap screws - MonsterBolts