Metallics RSDS2V 8 x 15/8 in. Bugle Head Star Drive Deck Screws - Steel Yellow Zinc - Type 17 - Threads - Each

No. The RSDS2V carries a Type 17 point, an auger tip with a chip cavity that lets the screw drive without pre-drilling a pilot hole, including in denser woods. That is the practical reason to pick this over a plain-point wood screw when you are running hundreds of fasteners in a deck or a blocking job.

Yellow zinc dichromate over steel is a light corrosion coating, suited to interior and covered work, framing, and general fastening. It is not a coating rated for direct ground contact or standing weather, and pressure treated lumber is chemically aggressive to plain zinc. For exposed exterior decking on treated lumber, look for a fastener with a coating specifically rated for ACQ treated wood or a stainless screw.

A T20 bit. The RSDS2V uses a star (flat six-lobe) recess, so a T20 star driver seats fully and cuts down on cam-out when you are running a jar of 500 through decking. Stock the crew with spare T20 bits before the job, since a worn bit is what chews the recess on a bugle head.

It will in wood. The bugle head on the RSDS2V has a flared underside that pulls itself flush as it seats, no counterbore needed, and the head measures 0.285 to 0.331 inch across with a head height of 0.108 inch, so it sits shallow and does not leave a crater. Bugle heads are for wood and composite only, not for pulling into steel.

The RSDS2V ships as a 500 count jar, and 500 is the order minimum, so a jar is the smallest unit. If you need this diameter and point in a different length or a different pack count, Metallics builds other sizes and quantities in the RSDS line on request.

The RSDS2V is flagged both ARRA compliant and Buy American compliant, which is the box a public agency, school district, or federally funded project needs checked on a submittal. Country of origin is listed as multiple, so if your spec demands a single named origin, confirm the origin on the lot you receive.

Nine threads per inch in a UNC coarse thread. That coarse, deep pitch is what grips softwood and composite, where a fine thread would strip the hole, and the deeper thread form resists pull-out. Coarse thread is the right choice for wood framing; it is not a machine thread and will not take a nut.

AISI 1018 to 1022 low carbon steel, which is the standard case hardened stock for driven wood screws. Combined with the Type 17 auger point clearing chips ahead of the thread, that keeps drive torque low, which is what actually protects a #8 shank from twisting off. Back the speed down in very dense or dry hardwood.

The 500 count jar weighs 3.6 lbs and measures 3.5 by 3.5 by 5.75 inches, so a case of jars stacks easily in a van or a gang box. Useful if you are staging a fastener count across several units and need to know what the truck is carrying.