MIDWEST FASTENER CORP
MIDWEST FASTENER CORP 03717 Hex Nut 3/8"-16 Steel Grade 8 Zinc Yellow 50 PK
Secures 3/8"-16 bolts with Grade 8 steel strength in a 50-piece zinc-yellow pack
- TypeNuts
- Grade 8 steel handles high-stress fastening
- Zinc yellow finish resists corrosion in harsh environments
- 3/8"-16 thread fits standard coarse bolts
- 50-piece pack covers multiple project needs
- Hex shape allows secure tightening with standard wrenches
Threaded Fastener Security
This pack supplies fifty Grade 8 hex nuts built for securing machine screws and bolts in demanding assemblies. The yellow zinc coating adds corrosion resistance for automotive and industrial environments. Each nut conforms to a 3/8"-16 thread pattern for standard coarse-pitch hardware.
Grade 8 Strength Envelope
The heat-treated steel core handles high clamping loads that would strip or stretch lower-grade fasteners. Fifty pieces provide enough quantity for multiple repair jobs or a single large project without reordering. The supply runs out when the joint count exceeds the pack quantity or when fine-thread compatibility is required.
Coarse Thread Interface Limits
The unified coarse 16 threads per inch profile resists cross-threading and speeds assembly compared with finer pitches. It will not engage fine-thread bolts or metric hardware, so mixed inventories need separate bins. Yellow zinc protects the surface but is not a substitute for stainless steel in continuous salt-spray exposure.
Highlights
- Grade 8 steel handles high-stress fastening
- Zinc yellow finish resists corrosion in harsh environments
- 3/8"-16 thread fits standard coarse bolts
- 50-piece pack covers multiple project needs
- Hex shape allows secure tightening with standard wrenches
Specifications
| Brand | MIDWEST FASTENER |
|---|---|
| Type | Nuts |
Questions about this item
Will these 3/8"-16 Grade 8 hex nuts thread correctly onto the existing 3/8"-16 bolts I already have?
Yes, the 3/8"-16 thread pitch matches standard 3/8"-16 bolts so they will thread on properly.
How can I confirm the Grade 8 strength rating once the nuts are installed?
Grade 8 nuts carry six radial lines on the top face; check for those markings after installation to verify the rating.
Does the 50-piece pack include matching washers or lock washers, or must I buy them separately?
The pack contains only the 50 hex nuts; any flat washers, lock washers or other hardware must be purchased separately.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
