Skip to content
Product Description

Part Number: 31C250BCGSS
Diameter/Pitch: 5/16"-18
Length Under Head: 2-1/2"
Grade: 18-8 (304) Stainless Steel
Coarse / Fine Threads: Coarse
Partial / Full Threads: Full
Square Width (Max): 0.324"


BoltsandNuts.com

5/16-18x2-1/2" Stainless Steel 18-8 Carriage Bolts

SKU: 31C250BCGSS
Product Description

Part Number: 31C250BCGSS
Diameter/Pitch: 5/16"-18
Length Under Head: 2-1/2"
Grade: 18-8 (304) Stainless Steel
Coarse / Fine Threads: Coarse
Partial / Full Threads: Full
Square Width (Max): 0.324"


Promo

B&N Pro eligible item. Save 10% when you join Pro. Learn more.

1
$1.19/pc
Popular
25
$0.89/pc
50
$0.75/pc
125
$0.60/pc
Best Value
400
$0.45/pc
$1.19
B&N Pro $0.00 Member Price
(Shipping $8.95) Add [amount] more for FREE SHIPPING
Father's Day Bundle Sale

Celebrate Father's Day with three specially curated bundles

SALE ENDS: 6/16/26

Diameter Pitch: 5/16"-18
Length Under Head: 2-1/2"
Finish: Plain
Partial Full Threads: Full
Coarse Fine Threads: Coarse
Square Width Max: 0.324"
Grade Material: 18-8 (304) Stainless Steel

Free Shipping Over $25

Orders ship from Perry, Ohio. Standard ground shipping is free on orders $25+ within the contiguous United States.

Expedited & Overnight Shipping

Available at checkout. Orders placed before 2 PM ET ship same day from in-stock inventory.

30-Day Returns

Return any unopened item within 30 days for a full refund. Free return labels available for qualifying customers.