Hillman 1/4 in. Dia. x 4 in. L Zinc-Plated Steel Hex Tap Bolts, Coarse Thread, 100-Pack Fiberglass Insulation A: Typically no— the domed

A: Typically no— the domed head provides a semi-flush finish that often eliminates the need for a washer

urethane-coated surface is water resistant

-13 (UNC) Head Type Hex cap Material Steel Grade Grade 5 Finish Zinc plated

while its low-gloss texture keeps the look sophisticated and understated

add one if your local code or climate requires it

Hillman 1/4 in. Dia. x 4 in. L Zinc-Plated Steel Hex Tap Bolts, Coarse Thread, 100-Pack Fiberglass Insulation A: Typically no— the domedHillman 1 4 in. x 4 in. Zinc Plated Hex Tap Bolts (100 Pack) Durable Hillman hex tap bolts made from steel with a protective zinc plated finish for corrosion resistance. Fully threaded, coarse thread fasteners ideal for general assembly, automotive, and construction applications. Key Features: Zinc Plated Steel: Corrosion resistant finish for long lasting performance Fully Threaded, Coarse Thread: Strong holding power and versatile grip in pre tapped