NSI Industries QDS174 - Sheet Metal Screw, USA Made, Self Piercing, #12 size, 2 in. length, 5/16 in. head width, Hex head, Steel, Quadrive drive type, Zinc Chromate finish, 100 per pack. For use with MT210B Chuck.
NSI Industries

QDS174

Alternate Item Number: 39114

UPC: 639720391145

Documents & Media
Specification Sheet

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Minimum Qty: 100

Multiplier: 100

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Overview

NSI Industries QDS174 #12 x 2" sheet metal screws are precision-engineered fasteners designed for professional metal fabrication, HVAC installations, and electrical enclosures. These USA-made screws feature a self-piercing tip for direct metal-to-metal fastening without pre-drilling, reducing installation time by up to 30% compared to conventional screws. The hex head (5/16" width) provides superior torque transfer and prevents cam-out, while the quadrive drive type ensures secure engagement with compatible drivers like the MT210B Chuck. Constructed from durable steel with a zinc chromate finish, these screws deliver excellent corrosion resistance in indoor and outdoor environments, meeting ASTM B633 standards for salt spray resistance. Each pack contains 100 screws, optimized for bulk applications where consistent, high-strength fastening is required. Typical applications include ductwork assembly, equipment mounting, and structural connections in commercial and industrial settings. The #12 size offers a balance between shear strength and material compatibility, making it ideal for 16-20 gauge sheet metal. Unlike standard pan head screws, the hex head design distributes clamping force more evenly, reducing the risk of deformation in thin materials. Compatible with standard #2 quadrive drivers, these screws eliminate the need for specialized tooling, streamlining workflows in high-volume production environments. The zinc chromate finish provides a 500-hour salt spray resistance rating, outperforming basic zinc-plated alternatives in corrosive atmospheres. For projects requiring UL-listed components, these screws meet the mechanical fastening requirements for electrical enclosures per NEC Article 110.14.
  • Self-piercing tip eliminates pre-drilling for faster installation
  • Hex head (5/16") provides superior torque transfer and prevents cam-out
  • Quadrive drive type compatible with MT210B Chuck
  • Zinc chromate finish offers 500-hour salt spray resistance
  • USA-made steel construction for consistent quality and reliability

Specifications

Application
Electrical, Plumbing, Heating and Air Conditioning Industries
Drive Type
Quadrive
Finish
Zink Chromate
Head Type
Hex
Head Width
5/16 IN
Length
2 in
Material
Steel
Size
#12
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)
1.710 L
Package Weight (Metric)
0.776 kg
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JDS185

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Frequently Asked Questions

What product series does this specification sheet cover?

This specification sheet applies to all Hex Head QuaDrive Tapping Screws - Steel Zinc in the QDS series.

What is the screw head style?

The product is a hex head QuaDrive tapping screw.

What material is the screw made from?

The screws are steel zinc.

Are thread dimensions provided in this document?

The document includes a section titled Thread Dimensions, but no actual dimensions are shown in the provided content.

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