Metallics JRSDS1 8 x 1-1/4 in. Bugle Head Star Drive Deck Screws - Steel Yellow Zinc - Type 17 - Threads - Each

A T20 bit. The JRSDS1 uses a star (flat six-lobe) recess, so a T20 star/Torx driver seats fully in the bugle head. Bring more than one bit if you're running a full jar of 100.

No. The JRSDS1 has a Type 17 point, which is the auger/chip-cavity tip that lets the screw drive without a pilot hole, including in denser woods. On brittle hardwood trim or close to an edge, a pilot still reduces splitting, but for normal decking and framing work you can drive it straight.

Yellow zinc dichromate over steel is a light corrosion coating, not a marine or heavy-exposure finish. The JRSDS1 is steel with a yellow zinc dichromate plating, which suits covered, interior and intermittently damp work. For a fully weather exposed deck, pressure treated contact or any coastal application, specify a fastener rated by the manufacturer for that exposure, typically a polymer coated or stainless screw.

The bugle head self-countersinks in wood. Head width runs 0.285 to 0.331 in. with a head height of 0.108 in., so the taper pulls itself below the surface in softwood without a separate countersink step. In hardwood or composite, ease off the trigger at the end to avoid overdriving.

100 screws, packed in a jar, and 100 count is the order minimum. The jar weighs 0.61 lbs, which is a useful cross-check if you're counting cartons on a receiving dock.

Metallics lists the JRSDS1 as ARRA compliant and Buy American compliant, with China as the country of origin. On a federally funded project, hand both of those facts to your compliance reviewer, since the governing clause on your contract decides whether the compliance designation or the origin controls.

AISI 1018 to 1022 low carbon steel, threaded 9 threads per inch in a UNC coarse pitch. The coarse, deep thread is what gives the pull-out resistance in wood, and the same thread that makes it grip wood is why it is not a machine screw for tapped metal.

Yes. Other sizes and quantities in the RSDS bugle head star drive Type 17 line are available by request. Tell us the diameter, length and count you need and we'll pull the matching part number.

Metallics supplies the JRSDS1 through its electrical line because electricians use a #8 x 1-1/4 in. coarse thread wood screw constantly, mounting straps, backer blocks, device boxes and panel plywood to studs. The short length and self-drilling Type 17 point make it practical for fastening into framing without pre-drilling. It is a wood screw though, so it is not for sheet metal, masonry anchors or tapped holes.