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Socket Cap Screws, Black Oxide Stainless Steel 18-8, 5/16"-18 x 3/4", Full Thread

Screw Diameter - Thread Pitch: 5/16"-18

5/16"-18 Black Oxide Knurled Head Socket cap screws are machine screws with an Allen drive style.

Commonly referred to as allen bolts, socket head cap screws, or socket head screws
Externally grooved cap head
Can be driven manually, or with a Hex Allen Bit or Key
Cylindrical head and hexagonal drive style
Sleek black finished look
Type of threaded fastener whose head diameter is nominally 1.5 times or more that of the screw shank (major) diameter

Black Oxide Stainless Steel Screws are used in applications looking for a sleek black look, as well as a mild layer of additional protection. Black Oxide Stainless Steel Socket Cap Screws are more corrosion and abrasion resistant than standard 18-8 stainless steel. Black Oxide Stainless Steel is often used in the automotive industry and on tool, knife and firearm builds.

Sizes Listed As:
Diameter - Thread Pitch x Length from Underside of Head
FT = Full Thread
PT = Partial Thread

Product number: 12220002

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FT = Full Thread (threaded the entire length)

Specifications

Chamfer on Radius: Max 0.008
Color: Black
Condition: New
Corrosion Resistant: Yes
Diameter: 5/16"
Drive Style: Internal Hex (Allen)
Head Type: Socket Head
Thread Direction: Right Hand
Thread Type: Coarse
Finish: Black Oxide
Fit: 3A
FT = Full Thread: Yes
Grade: 18-8
Head Height: Max 0.312 - Min 0.306
Head Height Max: 0.312
Head Diameter: Max 0.469 - Min 0.457
Head Side Height: Min 0.281
Head Style: Socket Cap
Hex Drive: 1/4"
Length: 3/4"
Material: Stainless Steel
Part Number: 618930221909
Product Type: Socket Cap Screws
Size Type: Regular
System of Measurement: Inch
Thread Direction: Right Hand
Thread Pitch: 18 Per Inch
Thread Size: 5/16"-18
Thread Standard: UNC
Thread Type: Coarse
Tolerance (IFI): Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
Weight: 1 lb

Select Size/SKU & Quantity

4 Available Sizes

SIZE/SKU	Review Volume Pricing*	Enter Any Qty
5/16"-18 x 3/4" FT 12220002	1 $1.26 ($1.26/ea) 100 $91.00 ($0.91/ea) 1000 $840.00 ($0.84/ea)	Quantity for Socket Cap Screws, Black Oxide Stainless Steel 18-8, 5/16"-18 x 3/4", Full Thread $0.00
5/16"-18 x 1" FT 12220014	1 $1.48 ($1.48/ea) 100 $107.00 ($1.07/ea) 1000 $980.00 ($0.98/ea)	Quantity for Socket Cap Screws, Black Oxide Stainless Steel 18-8, 5/16"-18 x 1", Full Thread $0.00
5/16"-18 x 1-1/4" FT 12220026	1 $1.51 ($1.51/ea) 100 $109.00 ($1.09/ea) 1000 $1,000.00 ($1.00/ea)	Quantity for Socket Cap Screws, Black Oxide Stainless Steel 18-8, 5/16"-18 x 1-1/4", Full Thread $0.00
5/16"-18 x 1-1/2" FT 12220038	1 $1.87 ($1.87/ea) 100 $136.00 ($1.36/ea) 1000 $1,250.00 ($1.25/ea)	Quantity for Socket Cap Screws, Black Oxide Stainless Steel 18-8, 5/16"-18 x 1-1/2", Full Thread $0.00