Technical Specs
Overview
FastenMaster Headlok 0.172 x 4.5 in. Wafer Structure Screw, 50-Count features a stronger design with shear values surpassing those of 3/8" lag screws, making it ideal for demanding structural applications. The sharp gimlet point allows for quick and easy installation into wood and OSB, while the aggressive threading ensures superior holding power and withdrawal strength. Equipped with the innovative Spider Drive, this screw offers the highest level of bit engagement and drivability, reducing cam-out and improving efficiency. The wafer head design eliminates the need for a washer and provides enhanced pull-through strength, complemented by a chamfer under the head for added durability. Each package includes a free Spider Drive bit and contains 50 screws, each measuring 0.172 inches in diameter and 4.5 inches in length. Finished with a corrosion-resistant coating and crafted from steel with a 0.191-inch shank diameter, these screws deliver reliable performance and longevity.
Model Number:
Warranty
FastenMaster backs its structural wood screws (LedgerLOK, HeadLOK, TimberLOK, ThruLOK, FlatLOK, FrameFAST) with a Guarantee of Performance rather than a generic consumer warranty: the fastener is guaranteed to meet its published ICC-ES structural load values when installed per FastenMaster's technical specifications and installation guides. If a fastener fails to perform as specified under proper installation, contact FastenMaster technical support (techsupport@fastenmaster.com) to file a claim.
Product Specifications
-
Head Type
- Round
-
Fastener Type
- Washer
-
Manufacturer Part Number
- Fmhlgmtt41250
Flexible Pickup & Delivery
Find a lower price on an exact item? We'll match it. Some exclusions apply.
Learn MoreAuthorized Dealer
We are an authorized dealer of several top brands, providing high-quality products with unmatched service.
Learn MoreFamily-Owned
We are a fourth-generation family-owned business built on community, trust, and family values.
Learn MorePrice Pledge
We will price-match items our customers find at local competitors for less money on in-store and online purchases.
Learn More- Choosing a selection results in a full page refresh.
- Opens in a new window.