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NSI Industries QK1M - Sheet Metal Screw, Self Piercing, #7 size, 1/2 in. length, 1/4 in. head width, Hex head, Steel, Slotted drive type, Zinc Chromate finish, #8 driver size, 1000 per pack. For use with MT208B Chuck.
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NSI Industries QK1M Sheet Metal Screw, Self Piercing, #7 size, 1/2 in. length, 1/4 in. head width, Hex head…

Alternate Item Number: 10660

UPC: 639720106602

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Specification Sheet

Contact for Pricing

Minimum Qty: 1000

Multiplier: 1000

*Contact for lower quantities*

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The NSI Industries QK1M is a precision-engineered #7 self-piercing sheet metal screw designed for rapid, pre-drill-free metal-to-metal fastening in high-volume industrial applications. This hex head slotted screw features a sharp point that pierces and threads into sheet metal in a single operation, eliminating the need for pilot holes and reducing assembly time by up to 40% compared to conventional screws. With a 1/2" length and 1/4" hex head width, the QK1M delivers robust joint integrity while providing superior torque transfer through its #8 driver interface. Constructed from high-strength steel with a durable Zinc Chromate finish, this fastener offers reliable corrosion resistance in environments with moisture or mild chemical exposure, extending service life in HVAC ductwork, electrical enclosures, automotive panels, and general metal fabrication. The slotted drive type ensures compatibility with standard slotted drivers, while the hex head design minimizes cam-out and allows for higher torque application than Phillips or slotted alternatives. Each pack contains 1000 screws, making it an economical choice for production lines requiring consistent, repeatable fastening. Engineered for compatibility with the MT208B chuck system, the QK1M integrates seamlessly into automated and manual fastening processes. Its self-tapping threads form a secure mechanical bond with sheet metal gauges from 20 to 14, making it ideal for thin-gauge applications where traditional bolts or screws would require additional hardware. The Zinc Chromate finish provides a protective barrier against rust and oxidation, ensuring long-term reliability in both indoor and outdoor industrial settings. For applications demanding speed, strength, and simplicity, the QK1M delivers a proven fastening solution that reduces labor costs and accelerates assembly workflows.
  • Self-piercing sharp point eliminates pre-drilling for faster assembly
  • #7 size with 1/2" length and 1/4" hex head for high torque transfer
  • Zinc Chromate finish provides corrosion resistance in moist environments
  • Slotted drive type compatible with standard #8 drivers
  • 1000 screws per pack for high-volume industrial applications

Specifications

Application
Electrical, Plumbing, Heating and Air Conditioning Industries
Drive Type
Slotted
Driver Size
#8
Finish
Zink Chromate
Head Type
Hex
Head Width
1/4 IN
Length
1/2 in
Material
Steel
Series
QK
Size
#7
Size
#7 x 1/2"
Type
Self Piercing
Package Dimensions (L x W x H)
3 IN x 3 IN x 4.57 IN
Package Dimensions (L x W x H)
7.62 cm x 7.62 cm x 11.6078 cm
Package Weight (Imperial)
2.760 L
Package Weight (Metric)
1.252 kg
Sheet Metal Screw, Indented Hex head, Self Piercing, #10 size, 1/2 in. length, 1/4 in. head width, Steel, Slotted drive type, Zinc Chromate finish, 100 per pack

JDS155

Sheet Metal Screw, Indented Hex head, Self Piercing, #10 size, 1/2 in. length, 1/4 in. head width, Steel, Slotted drive type, Zinc Chromate finish, 100 per pack
A tamperproof machine screw with a straight shank and external threads for use in a pre-tapped hole or nut. It is made of 18-8 stainless steel with a stainless finish. The screw is 1/2 inch long and has an oval head with a spanner drive.

26208TP

A tamperproof machine screw with a straight shank and external threads for use in a pre-tapped hole or nut. It is made of 18-8 stainless steel with a stainless finish. The screw is 1/2 inch long and has an oval head with a spanner drive.
Sheet Metal Screw, Self Piercing, #8 size, 3/4 in. length, 1/4 in. head width, Hex head, Steel, Slotted drive type, Zinc Chromate finish, #8 driver size, 1000 per pack. For use with MT208B Chuck.

QK10M

Sheet Metal Screw, Self Piercing, #8 size, 3/4 in. length, 1/4 in. head width, Hex head, Steel, Slotted drive type, Zinc Chromate finish, #8 driver size, 1000 per pack. For use with MT208B Chuck.
Sheet Metal Screw, Self Piercing, #8 size, 1-1/2 in. length, 1/4 in. head width, Hex head, Steel, Slotted drive type, Zinc Chromate finish, 1000 per pack. For use with MT208B Chuck.

QK17M

Sheet Metal Screw, Self Piercing, #8 size, 1-1/2 in. length, 1/4 in. head width, Hex head, Steel, Slotted drive type, Zinc Chromate finish, 1000 per pack. For use with MT208B Chuck.
Sheet Metal Screw, Self Piercing, #8 size, #8 driver size, 1/4 in. head width, Hex head, Steel, Slotted drive type, Zinc Chromate finish, 1/2 in. length, 1000 per pack. For use with MT208B Chuck.

QK5M

Sheet Metal Screw, Self Piercing, #8 size, #8 driver size, 1/4 in. head width, Hex head, Steel, Slotted drive type, Zinc Chromate finish, 1/2 in. length, 1000 per pack. For use with MT208B Chuck.
Sheet Metal Screw, Self Piercing, #8 driver size, 1 in. length, 1/4 in. head width, Hex head, Steel, Slotted drive type, Zinc Chromate finish, 1000 per pack. For use with MT208B Chuck.

QK15M

Sheet Metal Screw, Self Piercing, #8 driver size, 1 in. length, 1/4 in. head width, Hex head, Steel, Slotted drive type, Zinc Chromate finish, 1000 per pack. For use with MT208B Chuck.
Sheet Metal Screw, Self Piercing, #8 size, 2 in. length, 1/4 in. head width, Hex head, Steel, Slotted drive type, Zinc Chromate finish, 1000 per pack. For use with MT208B Chuck.

QK19M

Sheet Metal Screw, Self Piercing, #8 size, 2 in. length, 1/4 in. head width, Hex head, Steel, Slotted drive type, Zinc Chromate finish, 1000 per pack. For use with MT208B Chuck.
Sheet Metal Screw, Self Piercing, #10 size, 1/2 in. length, 1/4 in. head width, Hex head, Steel, Slotted drive type, Zinc Chromate finish, #8 driver size, 1000 per pack. For use with MT208B Chuck.

QK20M

Sheet Metal Screw, Self Piercing, #10 size, 1/2 in. length, 1/4 in. head width, Hex head, Steel, Slotted drive type, Zinc Chromate finish, #8 driver size, 1000 per pack. For use with MT208B Chuck.

Frequently Asked Questions

What product series does this specification sheet cover?

This sheet applies to all Hex Head Slotted Sharp Point Self-Piercing/Tapping Screws – Steel Zinc in the JQK series. It also includes Gray and White versions.

What material are these screws made from?

The screws are steel with a zinc finish.

What screw head style is listed?

The listed head style is hex head slotted.

What point type do these screws have?

These screws have a sharp point for self-piercing and tapping.

Frequently Asked Questions about NSI Industries

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Tork products are typically installed by trained technicians who follow a comprehensive commissioning process. This includes verifying the work environment, conducting electrical installation checks, performing internal and external equipment inspections, powering on the system, and executing operational tests to ensure compatibility and reliability.

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Tork products are designed to meet various environmental ratings, including NEMA Type 4X and Type 6, which provide protection against corrosion, windblown dust, rain, and occasional temporary submersion. These ratings ensure that Tork products can withstand harsh industrial environments while maintaining operational integrity.

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What technical support does Tork offer?

Tork offers a comprehensive range of technical support services, including 24/7 customer support, on-site service management, and a technical hotline network. With three advanced technical support centers and over 8,000 hours of technical training conducted annually, Tork ensures certified expertise across 25+ languages to assist customers effectively. Their commitment to service is reflected in a 98% Service Level Agreement compliance rate, providing reliable support for all operational needs.

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