Hex Washer Zip-In Screw (1000pg) - Malco Quick-Change Mechanism: It has a

Quick-Change Mechanism: It has a 1/4-inch power insert shank

Connections: It features a 1/4" Male Pipe Thread (MPT) connection at the bottom and a 1/4" Female Pipe Thread (FPT) connection on the side

factory-set to open at 300 PSIG

Hex Bolsters: Accept a wrench for extra turning power on stubborn fasteners

Hex Washer Zip-In Screw (1000pg) - Malco Quick-Change Mechanism: It has aThe Malco HW7X1 2ZT is a #7 x 1 2" Hex Washer Zip In Screw, packaged in a 1000 count tub. Here's a detailed overview: Product Details: HW7X1 2ZT Screw Size: #7 Length: 1 2 inch Head Style: 1 4" Slotted Hex Washer Head Finish: Bright Zinc Plated Drive Type: Slotted Hex Point Type: Ultra sharp tapered self piercing point Thread Design: Combination lead double thread Material: Steel Packaging: 1000 screws per tub