NSI Industries QCSH3 - Concrete Screw, Steel material, 3/16 in. Size, 2-1/4 in. length, 1/4 in. head width, Hex head, 2000 Hr Mechanical Zinc, Corrosion Resistant finish, CD2 drill stock number, Quadrive drive type, USA Made, 100 per pack
NSI Industries

QCSH3

Alternate Item Number: 39147

UPC: 639720391473


Documents & Media
Specification Sheet

Contact for Pricing

Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

NSI Industries QCSH3 concrete screw is a precision-engineered fastener for structural and non-structural concrete applications. Made from high-strength steel, this 3/16" diameter screw measures 2-1/4" in length with a 1/4" hex head for secure torque application. The 2000-hour mechanical zinc coating provides corrosion resistance in indoor and outdoor environments, meeting industrial durability standards. Designed for Quadrive drive compatibility, the QCSH3 installs quickly without pre-drilling, reducing labor time compared to traditional concrete anchors. Ideal for attaching wood, metal, or composite framing to concrete, this USA-made screw is stocked as CD2 and sold in 100-piece packs for bulk efficiency. The hex head ensures stable seating in tight spaces, while the corrosion-resistant finish maintains integrity in high-moisture or chemically treated areas. Suitable for construction, infrastructure, and manufacturing projects requiring reliable concrete fastening solutions.
  • 3/16" diameter, 2-1/4" length steel screw for concrete fastening
  • Hex head (1/4" width) with Quadrive drive for secure torque
  • 2000-hour mechanical zinc finish for corrosion resistance
  • No pre-drilling required; installs directly into concrete
  • Sold in 100-piece packs for bulk project efficiency

Specifications

Application
Electrical, Plumbing, Heating and Air Conditioning Industries
Head Type
Hexagon
Head Width
1/4 IN
Length
2-1/4 in
Material
Steel
Size
3/16 IN
Special Features
Features: One Concrete Screw Masonry Drill Packaged With Each Hard Body Pac Square Jar
Type
Tapping Screw
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)
1.390 L
Package Weight (Metric)
0.631 kg
5/16 x 2-1/4 Hex Head Concrete Screw Anchor Silver Seal

M2202SD

5/16 x 2-1/4 Hex Head Concrete Screw Anchor Silver Seal
A Tapcon concrete screw with a flat head and Phillips drive. It is made of steel and has a Blue Climaseal coating for extra corrosion protection. The screw size is 1/4 inch by 2-1/4 inch and it uses a patented Advance Threadform.

60736

A Tapcon concrete screw with a flat head and Phillips drive. It is made of steel and has a Blue Climaseal coating for extra corrosion protection. The screw size is 1/4 inch by 2-1/4 inch and it uses a patented Advance Threadform.

Frequently Asked Questions

What screw diameters are available?

The listed nominal diameters are 3/16 in and 1/4 in.

What lengths are available for the 3/16 in screws?

The 3/16 in screws are listed in 1-1/4 in, 1-3/4 in, and 2-1/4 in lengths.

What lengths are available for the 1/4 in screws?

The 1/4 in screws are listed in 1-1/4 in, 1-3/4 in, 2-1/4 in, and 2-3/4 in lengths.

What product series does this specification sheet cover?

This sheet applies to all QuaDrive Concrete Screws in the QCSH series. They are steel mechanical zinc/corrosion resistant fasteners.

What is the width across flats for 3/16 in screws?

For 3/16 in screws, the width across flats is .244 to .250 in.

What is the full head height for 3/16 in screws?

For 3/16 in screws, the full head height is .140 to .145 in.

What is the width across flats for 1/4 in screws?

For 1/4 in screws, the width across flats is .307 to .312 in.

What is the full head height for 1/4 in screws?

For 1/4 in screws, the full head height is .247 to .254 in.

What material are these concrete screws made of?

The screws are steel mechanical fasteners with a zinc/corrosion resistant finish.

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