Typical hardness is HRB 68 - HRC 32

solid masonry and hollow masonry

1-14 x 3 1/2 Socket Cap Screw Alloy

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5/64 x 12 High Speed Aircraft Bit Cobalt

14 x 7 ThruLOK® Screw Bolt Fastening System (6) Grade 2 Finished Hex Nuts Zinc Plated Typical hardness is HRB 6814 x 7 ThruLOK Screw Bolt Fastening System (6) . ThruLOK is the newest edition to the FastenMaster LOK Line of structural wood to wood fasteners. ThruLOK offers the speed of a LOK Line product and the strength of a through bolted connection. ThruLOK is a three part assembly including a ThruLOK fastener featuring the patent pending Paddle Point, engineered washer and LOK Nut. ThruLOK comes in specific lengths that allow contractors to replace their 1