L9® High Tension SAE pattern flat washers are designed for use in high stress

Intercorp Strong-Point® hi-low thread drywall screws are designed to attach gypsum board to both wood or steel studs

5/8 x 2 Dowel Pin Alloy Steel

the hardness rating is HRC 24-35

5/8-11 x 2 1/4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

1/4 x 8 1/4 Powers Wedge-Bit™ SDS Shank SDS Plus Hammer Drill Bits L9® High Tension SAE patternPowers Wedge Bit SDS Shank is a robust and reliable tool to easily drill through tough materials such as concrete and tile. With a 1 4 inch diameter and 8 1 4 inch length, it delivers maximum efficiency with its shank optimized for greater performance and versatility.