
550 Piece Hex Washer Tek Screw Assortment Starter Kit
550 self-drilling hex washer head tek screws across four diameters — #8, #10, #12, and #14 in the most-used lengths — pre-sorted in a 24-hole QR-coded labeled metal drawer. Commonly used in the electrical and roofing industries, these self-drilling screws eliminate the pre-drill step in sheet metal and light steel work and drive reliably with any standard 5/16" hex bit or nut driver.
What's Included
- Self-drilling hex washer head tek screws — #8, #10, #12, and #14 in the most widely used lengths per size
- 24-hole labeled metal drawer — pre-sorted by size and length
- 550 pieces total
Specifications
| Screw type | Self-drilling hex washer head (Tek screw) |
| Sizes | #8, #10, #12, #14 |
| Material | Carbon steel |
| Finish | Zinc plated |
| Drive | 5/16" hex washer head |
| Point | Self-drilling — no pilot hole required |
| Total pieces | 550 |
| Storage included | Yes — 24-hole labeled metal drawer |
| Compatible refill | 550-Piece Hex Washer Tek Screw Assortment Refill (ASSTHWTSDREFIL) |
Best For
- Electrical contractors — tek screws are the standard fastener for mounting electrical boxes, conduit supports, and enclosures to metal studs and light structural members
- Roofing contractors — metal roofing panels, eave trim, and ridge cap attachment on steel and corrugated panels require self-drilling screws across the #10–#14 range
- HVAC sheet metal shops — duct work assembly, plenum attachment, and equipment mounting all use hex washer tek screws; the 24-hole metal bin keeps them organized at the bench
- Metal building erectors — wall panel and trim attachment on steel-framed structures is a high-volume tek screw application that benefits from the 550-piece depth
Already have a drawer? The 550-Piece Tek Screw Assortment Refill restocks it.
Starter Kit vs. Refill — Which Do I Need?
| This Starter Kit | Refill | |
| Tek screws (550 pcs) | ✓ | ✓ |
| 24-hole labeled metal drawer | ✓ Included | — Already own one |
If this is your first purchase, the Starter Kit is the right choice. Restocking an existing bin saves you money.
Shipping & Ordering
- Ships within 1–2 business days from our warehouse
- Volume pricing available — save up to 20% when ordering 3 or more
- Reorder regularly? Ask us about a B2B account with custom pricing — contact us
Original: $123.95
-65%$123.95
$43.38More Images

550 Piece Hex Washer Tek Screw Assortment Starter Kit
550 self-drilling hex washer head tek screws across four diameters — #8, #10, #12, and #14 in the most-used lengths — pre-sorted in a 24-hole QR-coded labeled metal drawer. Commonly used in the electrical and roofing industries, these self-drilling screws eliminate the pre-drill step in sheet metal and light steel work and drive reliably with any standard 5/16" hex bit or nut driver.
What's Included
- Self-drilling hex washer head tek screws — #8, #10, #12, and #14 in the most widely used lengths per size
- 24-hole labeled metal drawer — pre-sorted by size and length
- 550 pieces total
Specifications
| Screw type | Self-drilling hex washer head (Tek screw) |
| Sizes | #8, #10, #12, #14 |
| Material | Carbon steel |
| Finish | Zinc plated |
| Drive | 5/16" hex washer head |
| Point | Self-drilling — no pilot hole required |
| Total pieces | 550 |
| Storage included | Yes — 24-hole labeled metal drawer |
| Compatible refill | 550-Piece Hex Washer Tek Screw Assortment Refill (ASSTHWTSDREFIL) |
Best For
- Electrical contractors — tek screws are the standard fastener for mounting electrical boxes, conduit supports, and enclosures to metal studs and light structural members
- Roofing contractors — metal roofing panels, eave trim, and ridge cap attachment on steel and corrugated panels require self-drilling screws across the #10–#14 range
- HVAC sheet metal shops — duct work assembly, plenum attachment, and equipment mounting all use hex washer tek screws; the 24-hole metal bin keeps them organized at the bench
- Metal building erectors — wall panel and trim attachment on steel-framed structures is a high-volume tek screw application that benefits from the 550-piece depth
Already have a drawer? The 550-Piece Tek Screw Assortment Refill restocks it.
Starter Kit vs. Refill — Which Do I Need?
| This Starter Kit | Refill | |
| Tek screws (550 pcs) | ✓ | ✓ |
| 24-hole labeled metal drawer | ✓ Included | — Already own one |
If this is your first purchase, the Starter Kit is the right choice. Restocking an existing bin saves you money.
Shipping & Ordering
- Ships within 1–2 business days from our warehouse
- Volume pricing available — save up to 20% when ordering 3 or more
- Reorder regularly? Ask us about a B2B account with custom pricing — contact us
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
550 self-drilling hex washer head tek screws across four diameters — #8, #10, #12, and #14 in the most-used lengths — pre-sorted in a 24-hole QR-coded labeled metal drawer. Commonly used in the electrical and roofing industries, these self-drilling screws eliminate the pre-drill step in sheet metal and light steel work and drive reliably with any standard 5/16" hex bit or nut driver.
What's Included
- Self-drilling hex washer head tek screws — #8, #10, #12, and #14 in the most widely used lengths per size
- 24-hole labeled metal drawer — pre-sorted by size and length
- 550 pieces total
Specifications
| Screw type | Self-drilling hex washer head (Tek screw) |
| Sizes | #8, #10, #12, #14 |
| Material | Carbon steel |
| Finish | Zinc plated |
| Drive | 5/16" hex washer head |
| Point | Self-drilling — no pilot hole required |
| Total pieces | 550 |
| Storage included | Yes — 24-hole labeled metal drawer |
| Compatible refill | 550-Piece Hex Washer Tek Screw Assortment Refill (ASSTHWTSDREFIL) |
Best For
- Electrical contractors — tek screws are the standard fastener for mounting electrical boxes, conduit supports, and enclosures to metal studs and light structural members
- Roofing contractors — metal roofing panels, eave trim, and ridge cap attachment on steel and corrugated panels require self-drilling screws across the #10–#14 range
- HVAC sheet metal shops — duct work assembly, plenum attachment, and equipment mounting all use hex washer tek screws; the 24-hole metal bin keeps them organized at the bench
- Metal building erectors — wall panel and trim attachment on steel-framed structures is a high-volume tek screw application that benefits from the 550-piece depth
Already have a drawer? The 550-Piece Tek Screw Assortment Refill restocks it.
Starter Kit vs. Refill — Which Do I Need?
| This Starter Kit | Refill | |
| Tek screws (550 pcs) | ✓ | ✓ |
| 24-hole labeled metal drawer | ✓ Included | — Already own one |
If this is your first purchase, the Starter Kit is the right choice. Restocking an existing bin saves you money.
Shipping & Ordering
- Ships within 1–2 business days from our warehouse
- Volume pricing available — save up to 20% when ordering 3 or more
- Reorder regularly? Ask us about a B2B account with custom pricing — contact us





















