500 Piece #8-14 Hex Washer Tek Screw Assortment Starter Kit

• Self-drilling hex washer head tek screws in #8, #10, #12, and #14 — multiple lengths per size
• QR-coded labeled plastic drawer — organized by size and ready to stock on your bench or service cart
• 500 pieces total, approximately 5 lbs

Type	Self-drilling hex washer head (Tek screw)
Sizes	#8, #10, #12, #14
Material	Carbon steel
Finish	Zinc plated
Drive	Hex washer head — 5/16" hex
Point	Self-drilling — no pilot hole required
Total pieces	500
Approx. weight	5 lbs
SKU	ASSTHWTSD12#2

• High-volume HVAC contractors — crews running multiple duct jobs simultaneously who need a deep supply of self-drilling screws across all four sizes without mid-job restocking
• Metal building erectors — wall panels, roof sheeting, trim, and structural attachments on steel-framed construction where tek screw consumption is high
• Fabrication shops — sheet metal fab operations where tek screws are a daily consumable across multiple product lines or customer jobs
• Roofing and siding contractors — production-volume installation of metal roofing and steel siding where 250 pieces runs out before a job is done
• Service fleets and multi-truck operations — stocking each truck or service van with a full bin means fewer callbacks to the shop for more screws

For lighter-volume use or a first purchase, see the 250-Piece Hex Washer Tek Screw Assortment — the same four sizes in a smaller, lower-commitment starting quantity.

A tek screw (also called a self-drilling screw) combines a drill point and a thread-forming body in one fastener. The drill point bores through the material, the shank taps the thread, and the head seats — all in a single driving operation, without a pre-drilled pilot hole. In sheet metal and light steel applications, this eliminates a step and significantly speeds up installation.

The hex washer head configuration is the standard choice for professional applications. The washer face spreads the clamping load to reduce pull-through on thinner material, and the hex drive is compatible with standard nut drivers, socket sets, and hex-tip impact drivers — no cam-out, no stripped heads.

The #8 through #14 range is calibrated for the most common commercial and industrial sheet metal thicknesses. Larger point numbers indicate a larger screw body and a heavier-duty self-drilling tip — #14 is the right choice for thicker gauge steel and heavier panels where a #8 or #10 would bind.

• Ships within 1–2 business days from our warehouse
• Volume pricing available — save up to 20% when ordering 3 or more kits
• B2B accounts: HVAC contractors, metal building crews, and fabrication shops can apply for a business account with custom pricing and a dedicated rep — contact us to get started