The M & M Fasteners Locknut Hex Heavy 5/16 x 8 NC Zinc Thin provides secure, vibration-resistant fastening in demanding applications. Its heavy hex design allows for higher torque capacity, while the zinc coating offers corrosion resistance. This thin locknut is ideal for professionals seeking reliable thread locking and long-lasting performance in mechanical and industrial assemblies.
- UPS Shipping: We ship via UPS to customers in Ohio, Michigan, Pennsylvania, Indiana, Kentucky, West Virginia, Texas, and New Jersey.
- Local Delivery: We provide local delivery to any business located within 50 miles of one of our locations.
- In-Store Pickup: You can pick up your order at any of our ten Ohio Peterbilt locations.
- Oversized Parts: These parts require LTL shipping, and may have other shipping restrictions. If you'd like to schedule other delivery options, please contact us at (440) 586-4528.
Standard Returns (Stock Items) Ohio Peterbilt accepts returns of stock truck parts within 30 days of purchase, provided the items are new, unused, and in resaleable condition with original packaging and all components intact. A copy of the original sales receipt or invoice should accompany the return to verify the purchase date.
If you're a tax-exempt customer, please complete our tax exempt form by click the button blow or contact us at ecommerce@ohiopeterbilt.com. We’ll help set up your online account so you can start placing tax-exempt orders.