8 Fairfax St SE
NAPA Auto Parts Genuine Parts Company
8 Fairfax St SE
Leesburg,  VA  20175
(703) 777-2055
Reserve Online Participant
Store Hours
Mon-Fri:7:30 AM-7:00 PM
Sat:8:00 AM-5:00 PM
Sun:9:00 AM-5:00 PM
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Rockford Grade 8 Hex Cap Screw UNC-USS Coarse Thread 3/18-16 x 3-1/2, Qty 25, Priced as Each

Rockford Grade 8 Hex Cap Screw UNC-USS Coarse Thread 3/18-16 x 3-1/2, Qty 25, Priced as Each

Part #: RFD 501638R
Line: Rockford

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Features & Benefits

Warranty: Standard : Products Are Free Of Defects And Meets Standard Specifications


Rockford, The Difference is Our Products. Traceability, Responsibility, & Accountability.

  • Look Closely At Our Products, They Are Manufactured To Exact Standards.
  • We Not Only Provide Lot Control & Certification, But Complete Support To You... Our Customer.
  • Our Plating Facilities Provide Us With the Ability to Closely Control Our Plating Thickness & Optimum Corrosion Resistance.
  • Manufactured To Meet Or Exceed O.E.M. Specifications In Function, Form & Fit.


Fastener Minimum Tensile Strength 150,000 lbs
Head Shape Hex Head
Material Type Steel
VMRS Code 053-007-005
Material Steel
Thread Size 3/8 in - 16
Fastener Material Medium Carbon Alloy Steel
Thread Type Coarse
Fastener Plated Material Zinc Gold Chromate
Fastener Proof Load 120,000 lbs
Brand Rockford
Meet SAE J429 & J1061 Standards Yes
Fastener Grade Grade 8
Thread Included Yes
SDS Required No
Finish Zinc

Safety Information

Vehicle Fitment Guide

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