#4-40 | 316 Stainless Steel Socket Cap Screws

Screw Diameter - Thread Pitch: #4-40

#4-40 Stainless steel knurled head socket cap screws are driven by an allen or hex wrench.

Commonly referred to as allen bolts, socket head cap screws, or socket head screws
externally grooved cap head
can be driven by hand
cylindrical head
head diameter is nominally 1.5 times or more that of the screw shank (major) diameter
316 Stainless steel offers superior corrosion and rust resistance
Ideal for marine and salt water environments

#4-40 Stainless steel (grade 316) knurled head socket cap screws corrosion resistance is greater than 18-8 stainless, which is why we recommend using 316 stainless steel fasteners for salt water application.

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

#4-40 x 1/8" Socket Head Screws 316 Stainless Steel

SKU #2010-086-002

1
$1.06 (1.06/ea)

25
$25.00 (1/ea)

100
$95.00 (0.95/ea)

1000
$930.00 (0.93/ea)

Subtotal: $0.00 /

#4-40 x 3/16" Socket Head Screws 316 Stainless Steel

SKU #2010-086-004

1
NA

25
$7.75 (0.31/ea)

100
$27.00 (0.27/ea)

1000
$240.00 (0.24/ea)

Subtotal: $0.00 /

#4-40 x 1/4" Socket Head Screws 316 Stainless Steel

SKU #2010-086-006

1
NA

25
$6.50 (0.26/ea)

100
$22.00 (0.22/ea)

1000
$200.00 (0.2/ea)

Subtotal: $0.00 /

#4-40 x 5/16" Socket Head Screws 316 Stainless Steel

SKU #2010-086-008

1
NA

25
$8.25 (0.33/ea)

100
$30.00 (0.3/ea)

1000
$290.00 (0.29/ea)

Subtotal: $0.00 /

#4-40 x 3/8" Socket Head Screws 316 Stainless Steel

SKU #2010-086-010

1
NA

25
$7.00 (0.28/ea)

100
$25.00 (0.25/ea)

1000
$220.00 (0.22/ea)

Subtotal: $0.00 /

#4-40 x 7/16" Socket Head Screws 316 Stainless Steel

SKU #2010-086-012

1
NA

25
$12.00 (0.48/ea)

100
$41.00 (0.41/ea)

1000
$390.00 (0.39/ea)

Subtotal: $0.00 /

#4-40 x 1/2" Socket Head Screws 316 Stainless Steel

SKU #2010-086-014

1
NA

25
$8.50 (0.34/ea)

100
$28.00 (0.28/ea)

1000
$250.00 (0.25/ea)

Subtotal: $0.00 /

#4-40 x 5/8" Socket Head Screws 316 Stainless Steel

SKU #2010-086-016

1
NA

25
$10.25 (0.41/ea)

100
$31.00 (0.31/ea)

1000
$280.00 (0.28/ea)

Subtotal: $0.00 /

#4-40 x 3/4" Socket Head Screws 316 Stainless Steel

SKU #2010-086-018

1
NA

25
$11.00 (0.44/ea)

100
$34.00 (0.34/ea)

1000
$310.00 (0.31/ea)

Subtotal: $0.00 /

#4-40 x 7/8" Socket Head Screws 316 Stainless Steel

SKU #2010-086-020

1
NA

25
$13.00 (0.52/ea)

100
$39.00 (0.39/ea)

1000
$350.00 (0.35/ea)

Subtotal: $0.00 /

#4-40 x 1" Socket Head Screws 316 Stainless Steel

SKU #2010-086-022

1
$0.86 (0.86/ea)

25
$19.75 (0.79/ea)

100
$73.00 (0.73/ea)

1000
$700.00 (0.7/ea)

Subtotal: $0.00 /

#4-40 x 1-1/4" Socket Head Screws 316 Stainless Steel

SKU #2010-086-024

1
$0.79 (0.79/ea)

25
$17.75 (0.71/ea)

100
$56.00 (0.56/ea)

1000
$500.00 (0.5/ea)

Subtotal: $0.00 /

#4-40 x 1-1/2" Socket Head Screws 316 Stainless Steel

SKU #2010-086-026

1
$0.85 (0.85/ea)

25
$19.00 (0.76/ea)

100
$59.00 (0.59/ea)

1000
$530.00 (0.53/ea)

Subtotal: $0.00 /

Frequently Used With

Hex Machine Nuts 316 Stainless Steel - #4-40 1251000-0002-002

1
NA

25
$2.50 (0.1/ea)

100
$9.00 (0.09/ea)

1000
$80.00 (0.08/ea)

Subtotal: $0.00 /

Long Arm Ball Point Premium Hex Allen Key Set - SAE Inch Sizes 13 Piece 1060-402

Our Price: $18.10

Subtotal: $0.00 /

#4-40 | 316 Stainless Steel Socket Cap Screws

Screw Diameter - Thread Pitch: #4-40

Frequently Used With

Product Specifications

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