Skip to content
Product Description

Part Number: 31C175LSHCSABO
Coarse / Fine Threads: Coarse
Finish: Black Oxide
Length Under Head: 1-3/4"
Diameter / Pitch: 5/16"-18
Finish: Black Oxide

BoltsandNuts.com

5/16"-18x1-3/4" Low Socket Head Cap Screws Thermal Black Oxide

SKU: 31C175LSHCSABO
Product Description

Part Number: 31C175LSHCSABO
Coarse / Fine Threads: Coarse
Finish: Black Oxide
Length Under Head: 1-3/4"
Diameter / Pitch: 5/16"-18
Finish: Black Oxide

Promo

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

1
$1.43/pc
Popular
50
$1.07/pc
100
$0.91/pc
250
$0.72/pc
Best Value
850
$0.54/pc
$1.43
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: 1-3/4"
Finish: Black Oxide
Coarse Fine Threads: Coarse
Grade Material: Black Oxide

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.