Internet #202770875

Model #WBS3

Store SKU #504085

3 in. One-Way Screws for Window Bar (4-Pack)

  • Helps to install Grisham window bar mounting brackets
  • Compatible with most security applications resisting tampering
  • Non-reversing design restricts removal by intruders
  • See More Details

Frequently Bought Together

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Price:
$699

Product Overview

The Grisham 3 in. one-way screw (4-pack) features a black powder-coated finish for weather durability. For use with all Grisham spearpoint window bar mounting brackets or fastener applications where possible tampering could occur. The non-reversing safety screw design inhibits removal of the fastener.
  • For use in fastening all Grisham window bar mounting brackets and accessories
  • Can be used in many security applications to inhibit potential tampering
  • Non-reversing design impedes removal
  • Rust-resistant finish
  • 4-pack of x 3 in. long by 5/16 in. Dia with a 5/8 in. round head

Info & Guides

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Specifications

Details

Returnable
180-Day

Warranty / Certifications

Manufacturer Warranty
1 year limited

Questions & Answers

4Questions4Answers

Do these screws work on concrete? Is there a drill bit to drill them in?

Asked by Manny July 31, 2020
1
Answer

Manny, Yes, they can be driven into concrete. Link to driver unit to assist. https://www.homedepot.com/p/Unique-Home-Designs-One-Way-Screw-Driver-IDA09200003000/202559952 Thank You, Grisham Bros.

What happens when you need to take the screws out to paint or replace the windows?

Asked by FZ July 25, 2016
1
Answer

You will need a One Way Screw remover, such as this one: http://www.homedepot.com/p/Ryobi-One-Way-Screw-Remover-Installer-Set-with-Sleeve-3-Piece-AR2016G/205193160

Will these fit a security door

Asked by Ron510 April 10, 2016
1
Answer

Door screws are generally 4" long, where as these are only 3". While they will "fit", they are not secure.

I need to remove my security bars on my windows to replace the windows but i do not have the tool to remove the screws.

Asked by Dave March 15, 2018
1
Answer

Dave, The removal tools are difficult to find, and must be specifically sized to the screw head to work properly, and success is not certain. Another method is to cut a slot into the head of the screw for use with a flat head screwdriver. Someone would need to use an electric hand held grinder with a cutting wheel to establish a modest slot. Thank You, Grisham Bros.

Customer Reviews

  • 6 Customer Reviews
  • 4.4 out of 5 stars overall
100% of customers recommended.
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Didn't realize they were wood thread and not machine thread,so...
Didn't realize they were wood thread and not machine thread,so they won't work for me.
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Perfect for the window bars....
Perfect for the window bars.
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5 Star Review
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WORKS GOOD. NEEDED TO DRILL SMALL HOLE IN WOOD FIRST.
WORKS GOOD. NEEDED TO DRILL SMALL HOLE IN WOOD FIRST.
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