Home  /   18-8 Stainless Steel Fastener Department  /  18-8 Stainless Steel Socket Head Screws  /  18-8 Stainless Steel Socket Head Cap Screws  /  4-40 Diameter 18-8 Stainless

 

4-40 Socket Head Cap Screws 18-8 / 304 Stainless Steel.

  • Socket Cap Screws have a Knurled Head and Is a Fastener Driven by a Socket Hex Allen Wrench.
  • They are also Known as a Socket Screw, Allen Socket Cap Bolt or Allen Cap Machine Screw.
  • The Hexagonal Drive or Hex Key L Wrench Allows For Stronger Tightening Compared to Screws that use a Phillips or Flat Head Screw Driver That Sometimes Tend To Strip The Head Of The Screw.
  • Made of 18-8 / 304 Grade Stainless Steel, These are the Most Popular Socket Cap Allen Wrench Screws for Many Production Applications.
  • #4-40 Right Hand Thread, UNC
  • Please View Matching Nuts & Washers Below. 


Item # Image Description Price
HEXKEY3/32
3/32 Allen Hex Key - Short Arm
3/32 Allen Hex Key - Short Arm
FOR 4-40 DIAMETER SOCKET HEAD CAP SCREWS. SOLD BY THE PIECE
$1.00

SHCS4-40X.1875BAG
4-40 x 3/16 Socket Cap Screws 18-8 / 304 Stainless Steel
4-40 x 3/16 Socket Cap Screws 18-8 / 304 Stainless Steel
  • SOLD IN BOXES OF 100.
  • 18-8 / 304 Stainless Steel.
  • Socket Head Cap Screw.
  • Hex Key Size = 3/32"
  • Contact Our Sales Department For Bulk Pricing.
$5.50

SHCS4-40X.25BAG
4-40 x 1/4 Socket Cap Screws 18-8 / 304 Stainless Steel
4-40 x 1/4 Socket Cap Screws 18-8 / 304 Stainless Steel
  • SOLD IN BOXES OF 100.
  • 18-8 / 304 Stainless Steel.
  • Socket Head Cap Screw.
  • Hex Key Size = 3/32"
  • Contact Our Sales Department For Bulk Pricing.
$5.75

SHCS4-40X.31BAG
4-40 x 5/16 Socket Cap Screws 18-8 / 304 Stainless Steel
4-40 x 5/16 Socket Cap Screws 18-8 / 304 Stainless Steel
  • SOLD IN BOXES OF 100.
  • 18-8 / 304 Stainless Steel.
  • Socket Head Cap Screw.
  • Hex Key Size = 3/32"
  • Contact Our Sales Department For Bulk Pricing.
$5.75

SHCS4-40X.380BAG
4-40 x 3/8 Socket Cap Screws 18-8 / 304 Stainless Steel
4-40 x 3/8 Socket Cap Screws 18-8 / 304 Stainless Steel
  • SOLD IN BOXES OF 100.
  • 18-8 / 304 Stainless Steel.
  • Socket Head Cap Screw.
  • Hex Key Size = 3/32"
  • Contact Our Sales Department For Bulk Pricing.
$6.00

SHCS4-40X.50BAG
4-40 x 1/2 Socket Cap Screws 18-8 / 304 Stainless Steel
4-40 x 1/2 Socket Cap Screws 18-8 / 304 Stainless Steel
  • SOLD IN BOXES OF 100.
  • 18-8 / 304 Stainless Steel.
  • Socket Head Cap Screw.
  • Hex Key Size = 3/32"
  • Contact Our Sales Department For Bulk Pricing.
$6.25

SHCS4-40X.625BAG
4-40 x 5/8 Socket Cap Screws 18-8 / 304 Stainless Steel
4-40 x 5/8 Socket Cap Screws 18-8 / 304 Stainless Steel
  • SOLD IN BOXES OF 100.
  • 18-8 / 304 Stainless Steel.
  • Socket Head Cap Screw.
  • Hex Key Size = 3/32"
  • Contact Our Sales Department For Bulk Pricing.
$6.50

SHCS4-40X.75BAG
4-40 x 3/4 Socket Cap Screws 18-8 / 304 Stainless Steel
4-40 x 3/4 Socket Cap Screws 18-8 / 304 Stainless Steel
  • SOLD IN BOXES OF 100.
  • 18-8 / 304 Stainless Steel.
  • Socket Head Cap Screw.
  • Hex Key Size = 3/32"
  • Contact Our Sales Department For Bulk Pricing.
$6.75

SHCS4-40X.875BAG
4-40 x 7/8 Socket Cap Screws 18-8 / 304 Stainless Steel
4-40 x 7/8 Socket Cap Screws 18-8 / 304 Stainless Steel
  • SOLD IN BOXES OF 100.
  • 18-8 / 304 Stainless Steel.
  • Socket Head Cap Screw.
  • Hex Key Size = 3/32"
  • Contact Our Sales Department For Bulk Pricing.
$6.75

SHCS4-40X10BAG
4-40 x 1 Socket Cap Screws 18-8 / 304 Stainless Steel
4-40 x 1 Socket Cap Screws 18-8 / 304 Stainless Steel
  • SOLD IN BOXES OF 100.
  • 18-8 / 304 Stainless Steel.
  • Socket Head Cap Screw.
  • Hex Key Size = 3/32"
  • Contact Our Sales Department For Bulk Pricing.
$7.25

SHCS4-40X125BAG
4-40 x 1-1/4 Socket Cap Screws 18-8 / 304 Stainless Steel
4-40 x 1-1/4 Socket Cap Screws 18-8 / 304 Stainless Steel
  • SOLD IN BOXES OF 100.
  • 18-8 / 304 Stainless Steel.
  • Socket Head Cap Screw.
  • Hex Key Size = 3/32"
  • Contact Our Sales Department For Bulk Pricing.
$12.00

SHCS4-40X150BAG
4-40 x 1-1/2 Socket Cap Screws 18-8 / 304 Stainless Steel
4-40 x 1-1/2 Socket Cap Screws 18-8 / 304 Stainless Steel
  • SOLD IN BOXES OF 100.
  • 18-8 / 304 Stainless Steel.
  • Socket Head Cap Screw.
  • Hex Key Size = 3/32"
  • Contact Our Sales Department For Bulk Pricing.
$13.50

NHS4-40BAG
4-40 Finish Hex Machine Screw Nuts Stainless Steel
4-40 Finish Hex Machine Screw Nuts Stainless Steel
  • SOLD IN BOXES OF 100.
  • #4-40 Machine Nut 1/4" Wrench Size.
  • Thickness 3/32"
  • Made From 18-8 / 304 Stainless Steel.
  • Contact Our Sales Department For Bulk Pricing.
Special Pricing Available
$5.00

NILS4-40BAG
4-40 Nylon Insert Hex Lock Nuts 18-8 Stainless Steel
4-40 Nylon Insert Hex Lock Nuts 18-8 Stainless Steel
  • SOLD IN BOXES OF 100.
  • #4-40 Thread Nyloc Lock Nut
  • 1/4" Wrench Size.
  • Made From 18-8 / 304 Stainless Steel.
  • Contact Our Sales Department For Bulk Pricing.
$4.00

NKLOCK4-40BAG
4-40 Hex Kep K-Lock Nuts 18-8 / 304 Stainless Steel Keps
4-40 Hex Kep K-Lock Nuts 18-8 / 304 Stainless Steel Keps
  • SOLD IN BOXES OF 100.
  • 1/4" Wrench Size.
  • 18-8 / 304 Grade Stainless Steel
  • Contact Our Sales Department For Bulk Pricing.
$4.25

NILST4-40BAG
4-40 THIN Nylon Insert Hex Jam Lock Nuts 18-8 / 304 Stainless Steel
4-40 THIN Nylon Insert Hex Jam Lock Nuts 18-8 / 304 Stainless Steel
  • SOLD BY THE BOX OF 100.
  • Flats 0.251", Height 0.125"
  • 18-8 / 304 Grade Stainless Steel.
  • Contact Our Sales Department For Bulk Pricing.
Special Pricing Available
$5.00

WFS04BAG
#4 Flat Washers 18-8 / 304 Stainless Steel
#4 Flat Washers 18-8 / 304 Stainless Steel
  • SOLD IN BOXES OF 100.
  • #4 Standard Commercial Pattern Round Flat Washers.
  • Made From 18-8 / 304 Stainless Steel.
  • ID 0.125" OD 0.312" Thickness 0.031"
  • CONTACT OUR SALES DEPARTMENT FOR BULK PRICING.
$3.00

WLS04BAG
#4 Split Ring Lock Washers 18-8 / 304 Stainless Steel
#4 Split Ring Lock Washers 18-8 / 304 Stainless Steel
  • SOLD IN BOXES OF 100.
  • Medium Profile Split Ring Lock Washers.
  • Made From 18-8 / 304 Stainless Steel.
  • ID 0.114" OD 0.209" Thickness 0.025"
  • CONTACT OUR SALES DEPARTMENT FOR BULK PRICING.
Special Pricing Available
$3.00

WINLW04BAG
#4 Internal Tooth Lock Washers 410 Stainless Steel
#4 Internal Tooth Lock Washers 410 Stainless Steel
  • SOLD IN BOXES OF 100.
  • 410 Grade Stainless Steel.
  • Serrated INTERNAL Tooth Star Washers 
  • Please Contact Our Sales Department For Bulk Pricing.
$3.00

WSAE4-803BAG
#4 SAE Flat Washers 18-8 / 304 Stainless Steel
#4 SAE Flat Washers 18-8 / 304 Stainless Steel
  • SOLD BY THE BOX OF 100
  • 18-8 / 304 Stainless Steel
  • ID: .125
  • OD:  .250
  • Thickness: .017 - .028
  • SAE 15795-803
Special Pricing Available
$4.25

NHSCAP4-40BAG25
4-40 Hex Acorn Cap Nuts 18-8 / 304 Stainless Steel
4-40 Hex Acorn Cap Nuts 18-8 / 304 Stainless Steel
  • SOLD BY BAG OF 25.
  • 1/4" Wrench Size.
  • 1/4" Height Overall
  • Made From 18-8 / 304 Stainless Steel.
  • Contact Our Sales Department For Bulk Pricing.
Special Pricing Available
$7.50