5/16"-18 Yellow Zinc Hex Cap Screws - Grade 8
Diameter - Thread Pitch: 5/16" - 18
- Hexagon head designed to be driven by a wrench or socket
- Also called hex cap bolts, hex bolts, tap bolts or hex cap screws
- Grade 8 Yellow zinc plated fasteners are heat treated and hardened for a more durable finished fastener
- REACH and RoHS Compliant
A hex cap screw in smaller sizes may not have a shoulder. When a hex cap screw is fully threaded it can also be referred to as a tap bolt.
A Hex Bolt is measured as: Diameter x Thread Pitch x Length from Under Head
FT: Fully Threaded
PT: Partially Threaded
**5/16"-18 Hex Cap Screws listed as PT, usually have a threaded portion of about 7/8".
However, this can vary slightly from manufacturer to manufacturer.
See Product Specifications