Lock Bolt

OEM Lock Bolt Lock Place Hex 3/8" - 16 X 3/4" Gr 8 Hhcs - Self Locking 3/8" - 16 Nc X 3/4" #121 - OEM Pin, Bolt, or Retainer Service Part for Heavy Equipment Repair Designed as a service replacement rather than a modification part, this OEM component repairs equipment affected by loose mounting points, missing hardware, and worn retention components and stripped threads, bent pins, loose mounting, and lost clips. Targeted to service work involving OEM pin replacement, hardware repair, retainer service, and Case equipment fastening maintenance on Case equipment.

Ships nationwide. In-stock parts ordered before 2:30 PM ET ship the same business day. Your exact shipping cost and delivery estimate are calculated at checkout from your ZIP code and the part’s size and weight; oversized and truck-freight items may need extra transit time and freight charges.

Free branch pickup is also available across Ohio, Indiana, Michigan, and Kentucky — just choose it at checkout.

30-day returns. New, unused parts in original packaging may be returned within 30 days. Some items — including electrical, special-order, and direct-from-supplier parts — are non-returnable. See our full return policy.