5/16"-18 Stainless Steel Socket Cap Screws

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

5/16"-18 Stainless steel Knurled Head socket cap screws are bolts or machine screws with a Hex or Allen drive style.

Commonly referred to as allen bolts, socket head cap screws, or socket head screws
Driven manually, or with a Hex Allen Bit or Key
Cylindrical head
18-8 Stainless Steel offer the Fastener Industry standard for corrosion and rust resistance
Recommended for use in exterior applications, or those that are exposed to fresh water moisture

The term socket head cap screw typically refers to a type of threaded fastener whose head diameter is nominally 1.5 times or more that of the screw shank (major) diameter.

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

Select Products Below See Product Specifications

NA = "Not Sold In Single Quantity"

Select Package Quantity

Socket Cap Screws 304 SS - 5/16-18 x 3/8 (FT)

SKU #3000002

1
NA

25
$14.25 (0.57/ea)

100
$53.00 (0.53/ea)

1000
$510.00 (0.51/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 7/16 (FT)

SKU #300002

1
$3.34 (3.34/ea)

25
$80.00 (3.2/ea)

100
$308.00 (3.08/ea)

1000
$3,050.00 (3.05/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 1/2 (FT)

SKU #30002

1
NA

25
$7.00 (0.28/ea)

100
$25.00 (0.25/ea)

1000
$220.00 (0.22/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 5/8 (FT)

SKU #30012

1
NA

25
$7.50 (0.3/ea)

100
$25.00 (0.25/ea)

1000
$220.00 (0.22/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 3/4 (FT)

SKU #30022

1
NA

25
$7.75 (0.31/ea)

100
$25.00 (0.25/ea)

1000
$220.00 (0.22/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 7/8 (FT)

SKU #30032

1
NA

25
$7.00 (0.28/ea)

100
$26.00 (0.26/ea)

1000
$250.00 (0.25/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 1 (FT)

SKU #30042

1
NA

25
$8.75 (0.35/ea)

100
$29.00 (0.29/ea)

1000
$250.00 (0.25/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 1-1/8 (FT)

SKU #300502

1
NA

25
$12.50 (0.5/ea)

100
$48.00 (0.48/ea)

1000
$450.00 (0.45/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 1-1/4 (FT)

SKU #30052

1
NA

25
$8.75 (0.35/ea)

100
$32.00 (0.32/ea)

1000
$310.00 (0.31/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 1-3/8 (FT)

SKU #300602

1
NA

25
$15.25 (0.61/ea)

100
$59.00 (0.59/ea)

1000
$580.00 (0.58/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 1-1/2 (FT)

SKU #30062

1
NA

25
$11.25 (0.45/ea)

100
$36.00 (0.36/ea)

1000
$310.00 (0.31/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 1-3/4 (PT)

SKU #30072

1
$0.62 (0.62/ea)

25
$13.75 (0.55/ea)

100
$45.00 (0.45/ea)

1000
$390.00 (0.39/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 2 (PT)

SKU #30082

1
$0.54 (0.54/ea)

25
$12.50 (0.5/ea)

100
$46.00 (0.46/ea)

1000
$450.00 (0.45/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 2-1/4 (PT)

SKU #300902

1
$0.88 (0.88/ea)

25
$21.50 (0.86/ea)

100
$83.00 (0.83/ea)

1000
$810.00 (0.81/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 2-1/2 (PT)

SKU #30092

1
$0.91 (0.91/ea)

25
$22.00 (0.88/ea)

100
$66.00 (0.66/ea)

1000
$580.00 (0.58/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 2-3/4 (PT)

SKU #301002

1
$1.06 (1.06/ea)

25
$25.75 (1.03/ea)

100
$99.00 (0.99/ea)

1000
$970.00 (0.97/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 3 (PT)

SKU #30102

1
$1.44 (1.44/ea)

25
$31.25 (1.25/ea)

100
$102.00 (1.02/ea)

1000
$880.00 (0.88/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 3-1/4 (PT)

SKU #301102

1
$1.52 (1.52/ea)

25
$36.75 (1.47/ea)

100
$141.00 (1.41/ea)

1000
$1,390.00 (1.39/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 3-1/2 (PT)

SKU #30112

1
$2.27 (2.27/ea)

25
$50.00 (2/ea)

100
$178.00 (1.78/ea)

1000
$1,520.00 (1.52/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 4 (PT)

SKU #30122

1
$2.59 (2.59/ea)

25
$56.25 (2.25/ea)

100
$196.00 (1.96/ea)

1000
$1,680.00 (1.68/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 4-1/2 (PT)

SKU #30132

1
$2.83 (2.83/ea)

25
$62.50 (2.5/ea)

100
$214.00 (2.14/ea)

1000
$1,840.00 (1.84/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 5 (PT)

SKU #30142

1
$3.65 (3.65/ea)

25
$87.50 (3.5/ea)

100
$278.00 (2.78/ea)

1000
$2,380.00 (2.38/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 6 (PT)

SKU #30152

1
$4.11 (4.11/ea)

25
$93.75 (3.75/ea)

100
$308.00 (3.08/ea)

1000
$2,380.00 (2.38/ea)

Subtotal: $0.00 /

Socket Cap Screws 304 SS - 5/16-18 x 7 (PT)

SKU #30162

1
$9.13 (9.13/ea)

25
$212.50 (8.5/ea)

100
$736.00 (7.36/ea)

1000
$6,290.00 (6.29/ea)

Subtotal: $0.00 /

FREQUENTLY USED WITH

Hex Socket Head Power Bits - 1/4 - Length 2" 1050-800-0051

1
$3.15 (3.15/ea)

10
$29.80 (2.98/ea)

25
$72.75 (2.91/ea)

50
$129.50 (2.59/ea)

Subtotal: $0.00 /

Hex Allen Key Long Arm 1/4" Black Alloy 1055-10026-0002

1
$1.15 (1.15/ea)

25
$27.75 (1.11/ea)

100
$108.00 (1.08/ea)

1000
$1,050.00 (1.05/ea)

Subtotal: $0.00 /

Hex Allen Key Short Arm 1/4 Black Alloy 1055-20026-0002

1
$0.85 (0.85/ea)

25
$18.75 (0.75/ea)

100
$70.00 (0.7/ea)

1000
$660.00 (0.66/ea)

Subtotal: $0.00 /

Hex Finish Nuts 304 SS - 5/16"-18 (1/2" Flats x 17/64" Thick) 123022

1
NA

25
$2.50 (0.1/ea)

100
$7.00 (0.07/ea)

1000
$60.00 (0.06/ea)

Subtotal: $0.00 /

Products

5/16"-18 Stainless Steel Socket Cap Screws

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

FREQUENTLY USED WITH

Product Specifications

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