10-16 x 5/8 Slotted Indented Hex Washer High Low Fully Threaded Zinc and Bake M-EPPB They have a slot indent

They have a slot indent hex washer head

These carriage bolts are commonly used in construction

featuring a fully threaded design for maximum grip

This makes them ideal for use in thin materials or materials that are difficult to tap

1/2-13 x 4 Hex Tap Bolt Grade 5 Fully Threaded Zinc is a high-quality fastener designed for a variety of applications

10-16 x 5/8 Slotted Indented Hex Washer High Low Fully Threaded Zinc and Bake M-EPPB They have a slot indent10 16 x 5 8 Slotted Indented Hex Washer High Low Fully Threaded Zinc and Bake These bolts are made of steel and have a zinc and bake finish. They have a slotted indented hex washer head and are fully threaded. They are 10 16 x 5 8 inches in size. These bolts are commonly used in construction and manufacturing applications.