PICTURES ARE REPRESENTATIVE OF ITEM, BUT ARE NOT OF THE ACTUAL ITEM. Product dimensions, finish, head markings, thread length, stamping shape or forging shape, etc., may differ from picture. Products are guaranteed to meet the specifications to which they are manufactured. Specifications allow for tolerances in dimension and shape, which can vary from lot to lot.

#4-40x3/8" (FT) Coarse Thread Socket Head Cap Screw Left Hand Thread Alloy Steel Black Oxide

Price Per Piece: $8.3296

Part #:: 0000-257395
Minimum Purchase:: 100 pieces

PRODUCT SPECIFICATIONS (Part # 0000-257395)
Fastener Type:	Socket Head Cap Screw Left Hand Thread
Size Description:	#4-40x3/8" (FT)
Diameter/Nominal Size:	#4
Length:	3/8"
Thread Pitch:	40
Thread Pitch Type:	Coarse
Thread Direction:	Left
Thread Coverage:	Full
System of Measurement:	Inch
Grade:	170 KSI Alloy Steel (Grade 9)
Material:	Alloy Steel
Finish:	Thermal Black Oxide
Head Type:	Cylindrical
Drive Type:	Internal Hex
Average Piece Weight:	0.0013000 lbs.

The socket screws category contains several different types of fasteners with one thing in common: an internal hex (allen) drive.

Socket head cap screws are used in fastening or clamping components together, die castings, and machine assemblies, among other uses.

Socket flat head cap screws are used in applications where countersinking is desired. Used when a flush finish is required for either safety or appearance requirements.

Socket button head cap screws are used when appearance is a factor, and clamping material is too thin to countersink the screw. Examples are end panels, display shelving, and carts.

Socket shoulder screws are used in many tool and die applications as well as stationary guides, pulley shafts, moving shafts, or pivots.

Socket low head cap screws are used in applications where not enough clearance is available for a standard socket head cap screw.

Set screws are used to fasten shaft collars, gears, and knobs on shafts or where frequent adjustments are involved.

Socket screws are available in a variety of materials, such as high-strength alloy steel, and different stainless steel alloys, and others.