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5/16-18 Hex Head Cap Screws 316 Marine Grade Stainless Steel.

  • 316 Stainless Steel 5/16"-18 Hex Bolts Have a Hexagonal Head Used With a Wrench or a Socket.
  • Hex Head Cap Bolts are a Primary Fastener Type For Many Thru-Bolting Applications.
  • As a General Hex Cap Screw Rule: Thread Length is: 2X The Diameter Plus 1/2".
  • For Fully Threaded Hex Bolts Please View Our FULL THREAD Tap Bolt Category.
  • Made out of 316 Grade Stainless Steel.
  • Type 316 Contains Slightly More Nickel Than 18-8 Stainless Steel and 2-3% Molybdenum Alloy Giving it Better Resistance to Corrosion Than 304.
  • It is Excellent for Use Where Exposed to Chemicals and the Corrosive Effects.
  • Type 316 Stainless Steel is Used Extensively in the Marine, Utilities, R/O, and Other Applications Where SUPERIOR Corrosion Resistance is Required.
  • Right Hand Thread, UNC
  • Please View Matching Nuts & Washers Below. 
  • CONTACT OUR SALES DEPARTMENT FOR BULK AND WHOLESALE PRICING.


Item # Image Description Price
BST5/16-18X.75BAG25
5/16-18 x 3/4
5/16-18 x 3/4" Hex Head Cap Screw Bolts 316 Stainless Steel
  • SOLD BY BAG OF 25.
  • 7/16" Wrench Size
  • 5/32" Head Height
  • 5/16"-18 Thread Pitch
  • 316 Marine Grade Stainless Steel.
  • Contact our Sales Department for Bulk Pricing.
Special Pricing Available
$6.75

BST5/16-18X100BAG25
5/16-18 x 1
5/16-18 x 1" Hex Head Cap Screw Bolts 316 Stainless Steel
  • SOLD BY BAG OF 25.
  • 7/16" Wrench Size
  • 5/32" Head Height
  • 5/16"-18 Thread Pitch
  • 316 Marine Grade Stainless Steel.
  • Contact our Sales Department for Bulk Pricing.
Special Pricing Available
$7.25

BST5/16-18X125BAG25
5/16-18 x 1-1/4
5/16-18 x 1-1/4" Hex Head Cap Screw Bolts 316 Stainless Steel
  • SOLD BY BAG OF 25.
  • 7/16" Wrench Size
  • 5/32" Head Height
  • 5/16"-18 Thread Pitch
  • 316 Marine Grade Stainless Steel.
  • Contact our Sales Department for Bulk Pricing.
Special Pricing Available
$7.75

BST5/16-18X150BAG25
5/16-18 x 1-1/2
5/16-18 x 1-1/2" Hex Head Cap Screw Bolts 316 Stainless Steel
  • SOLD BY BAG OF 25.
  • 7/16" Wrench Size
  • 5/32" Head Height
  • 5/16"-18 Thread Pitch
  • 316 Marine Grade Stainless Steel.
  • Contact our Sales Department for Bulk Pricing.
Special Pricing Available
$8.25

BST5/16-18X175BAG25
5/16-18 x 1-3/4
5/16-18 x 1-3/4" Hex Head Cap Screw Bolts 316 Stainless Steel
  • SOLD BY BAG OF 25.
  • 7/16" Wrench Size
  • 5/32" Head Height
  • 5/16"-18 Thread Pitch
  • 316 Marine Grade Stainless Steel.
  • Contact our Sales Department for Bulk Pricing.
Special Pricing Available
$9.00

BST5/16-18X200BAG25
5/16-18 x 2
5/16-18 x 2" Hex Head Cap Screw Bolts 316 Stainless Steel
  • SOLD BY BAG OF 25.
  • 7/16" Wrench Size
  • 5/32" Head Height
  • 5/16"-18 Thread Pitch
  • 316 Marine Grade Stainless Steel.
  • Contact our Sales Department for Bulk Pricing.
$9.25
sale $8.50 


BST5/16-18X225BAG10
5/16-18 x 2-1/4
5/16-18 x 2-1/4" Hex Head Cap Screw Bolts 316 Stainless Steel
  • SOLD BY BAG OF 10.
  • 7/16" Wrench Size
  • 5/32" Head Height
  • 5/16"-18 Thread Pitch
  • 316 Marine Grade Stainless Steel.
  • Contact our Sales Department for Bulk Pricing.
Special Pricing Available
$5.00

BST5/16-18X250BAG10
5/16-18 x 2-1/2
5/16-18 x 2-1/2" Hex Head Cap Screw Bolts 316 Stainless Steel
  • SOLD BY BAG OF 10.
  • 7/16" Wrench Size
  • 5/32" Head Height
  • 5/16"-18 Thread Pitch
  • 316 Marine Grade Stainless Steel.
  • Contact our Sales Department for Bulk Pricing.
Special Pricing Available
$5.50

BST5/16-18X300BAG10
5/16-18 x 3
5/16-18 x 3" Hex Head Cap Screw Bolts 316 Stainless Steel
  • SOLD BY BAG OF 10.
  • 7/16" Wrench Size
  • 5/32" Head Height
  • 5/16"-18 Thread Pitch
  • 316 Marine Grade Stainless Steel.
  • Contact our Sales Department for Bulk Pricing.
Special Pricing Available
$5.75

BST5/16-18X350BAG10
5/16-18 x 3-1/2
5/16-18 x 3-1/2" Hex Head Cap Screw Bolts 316 Stainless Steel
  • SOLD BY BAG OF 10.
  • 7/16" Wrench Size
  • 5/32" Head Height
  • 5/16"-18 Thread Pitch
  • 316 Marine Grade Stainless Steel.
  • Contact our Sales Department for Bulk Pricing.
Special Pricing Available
$6.25

BST5/16-18X400BAG10
5/16-18 x 4
5/16-18 x 4" Hex Head Cap Screw Bolts 316 Stainless Steel
  • SOLD BY BAG OF 10.
  • 7/16" Wrench Size
  • 5/32" Head Height
  • 5/16"-18 Thread Pitch
  • 316 Marine Grade Stainless Steel.
  • Contact our Sales Department for Bulk Pricing.
Special Pricing Available
$7.00

BST5/16-18X450
5/16-18 x 4-1/2
5/16-18 x 4-1/2" Hex Head Cap Screw Bolts 316 Stainless Steel
  • SOLD BY THE PIECE
  • 7/16" Wrench Size
  • 5/32" Head Height
  • 5/16"-18 Thread Pitch
  • 316 Marine Grade Stainless Steel.
  • Contact our Sales Department for Bulk Pricing.
$0.95

BST5/16-18X500
5/16-18 x 5
5/16-18 x 5" Hex Head Cap Screw Bolts 316 Stainless Steel
  • SOLD BY THE PIECE
  • 7/16" Wrench Size
  • 5/32" Head Height
  • 5/16"-18 Thread Pitch
  • 316 Marine Grade Stainless Steel.
  • Contact our Sales Department for Bulk Pricing.
$1.25

BST5/16-18X550
5/16-18 x 5-1/2
5/16-18 x 5-1/2" Hex Head Cap Screw Bolts 316 Stainless Steel
  • SOLD BY THE PIECE
  • 7/16" Wrench Size
  • 5/32" Head Height
  • 5/16"-18 Thread Pitch
  • 316 Marine Grade Stainless Steel.
  • Contact our Sales Department for Bulk Pricing.
$1.50

BST5/16-18X600
5/16-18 x 6
5/16-18 x 6" Hex Head Cap Screw Bolts 316 Stainless Steel
  • SOLD BY THE PIECE
  • 7/16" Wrench Size
  • 5/32" Head Height
  • 5/16"-18 Thread Pitch
  • 316 Marine Grade Stainless Steel.
  • Contact our Sales Department for Bulk Pricing.
$1.95

WFTS5/16BAG
5/16 Flat Washer 316 Stainless
5/16 Flat Washer 316 Stainless
  1. SOLD IN BOXES OF 100.
  2. 3/4" OD.
  3. .050 Thickness
  4. 316 STAINLESS STEEL.
  5. CONTACT OUR SALES DEPARTMENT FOR BULK PRICING.
Special Pricing Available
$8.00

CHCSASST316
Coarse Thread Hex Head Cap Screws, Nuts, Washers Assortment 316 Stainless Steel
Coarse Thread Hex Head Cap Screws, Nuts, Washers Assortment 316 Stainless Steel
  • Coarse Thread Hex Head Cap Screw Bolts, Nuts and Washers.
  • 198 Piece Assortment Kit Set In Clear Plastic Box.
  • Marine Grade 316 Stainless Steel.
  • Includes Sizes 1/4-20, 5/16-18, 3/8-16 
  • View Extended Info For Quantity.

 
$45.00

NHST5/16-18BAG25
5/16-18 Finish Hex Nut 316 Stainless
5/16-18 Finish Hex Nut 316 Stainless
  1. SOLD BY BAG OF 25..
  2. 1/2" WRENCH SIZE.
  3. 17/64" Thickness
  4. 316 STAINLESS STEEL
  5. CONTACT OUR SALES DEPARTMENT FOR BULK PRICING.
Special Pricing Available
$3.50

NLST5/16-18BAG25
5/16-18 Nylon Insert Lock Nuts 316 Stainless
5/16-18 Nylon Insert Lock Nuts 316 Stainless
  1. SOLD BY BAG OF 25..
  2. 316 STAINLESS STEEL
  3. CONTACT OUR SALES DEPARTMENT FOR BULK PRICING.
Special Pricing Available
$5.25

NHSTCAP5/16-18BAG10
5/16-18 Hex Cap Nut 316 Stainless
5/16-18 Hex Cap Nut 316 Stainless
  1. SOLD BY BAG OF 10..
  2. 316 STAINLESS STEEL
  3. CONTACT OUR SALES DEPARTMENT FOR BULK PRICING.
Special Pricing Available
$13.25

NHHST5/16-18BAG25
5/16-18 Heavy Hex Finish Nuts 316 Stainless Steel
5/16-18 Heavy Hex Finish Nuts 316 Stainless Steel
  • SOLD BY BAG OF 25.
  • Extra Thick Hex Finish Nuts
  • Flats 9/16" Height 19/64"
  • Marine Grade 316 Stainless Steel.
  • Contact Our Sales Department For Bulk Pricing.
$8.25

WLTS5/16BAG
5/16 Lock Washers 316 Stainless
5/16 Lock Washers 316 Stainless
  1. SOLD IN BOXES OF 100.
  2. 316 STAINLESS STEEL.
  3. CONTACT OUR SALES DEPARTMENT FOR BULK PRICING.
Special Pricing Available
$7.25

WFDTS5/16X125BAG25
5/16 x 1 1/4 Fender Washer Type 316 Stainless
5/16 x 1 1/4 Fender Washer Type 316 Stainless
  1. SOLD BY BAG OF 25.
  2. 1 1/4" OD
  3. .050 Thickness
  4. 316 STAINLESS STEEL.
  5. CONTACT OUR SALES DEPARTMENT FOR BULK PRICING.
Special Pricing Available
$6.50

WFDTS5/16X150BAG25
5/16 x 1 1/2 Fender Washer Type 316 Stainless
5/16 x 1 1/2 Fender Washer Type 316 Stainless
  1. SOLD BY BAG OF 25.
  2. 1 1/2" OD
  3. .062 Thickness
  4. 316 STAINLESS STEEL.
  5. CONTACT OUR SALES DEPARTMENT FOR BULK PRICING.
Special Pricing Available
$7.50

WSAET5/16BAG25
5/16 SAE Flat Washer 316 Stainless, 15795-812
5/16 SAE Flat Washer 316 Stainless, 15795-812
  1. SOLD BY BAG OF 25.
  2. 316 Stainless Steel
  3. ID: .343
  4. OD:  .687
  5. Thickness: .051 - .080
  6. SAE 15795-812
Special Pricing Available
$7.00