Countr-Bor Screw - 55943 | LawsonProducts.com

Countr-Bor Screw

Countr-Bor Screw, Alloy Steel, Plain Finish, 7/16-20 x 3"  (Pack of 25)

Item#
55943
Price :
Standard Pack :
25   ea.
Ship Weight :
3.55
 
This item has been Discontinued.

Description

• Countr-Bor Screws generate higher clamp loads because they are torqued through an external drive (socket); standard hex socket head screws are torqued by an internal drive (hex key)
• Heat-treated alloy steel
• Class 3A UNC threads
• Tensile strength: 180,000 PSI (up to and including 1/2" dia.); 170,000 PSI (over 1/2" dia.)
• ANSI Specification B1.1
• All dimensional properties meet IFI-115 and SAE J58 specifications
• Lawson Countr-Bor Screws can replace any standard hex socket head screw
• 12-point screw fits into same counter-bore hole – use standard 12 point socket
NOTE: Use a wrench or socket size which corresponds to the diameter of the screw. For example, a 5/16" dia. screw is installed by using a 5/16", 12 point standard socket.

Tech Specs

Item# :
55943
Product Name :
Countr-Bor Screw
Diameter :
7/16 "
Thread Pitch :
20 tpi
Length :
3 "
Finish :
Plain
Material :
Alloy Steel
Type :
Counter-Bor
Head Style :
12-Point Flange
Size :
3 "
Specification :
IFI-115
Tensile Strength :
180,000 PSI
Thread :
Fine
UNSPSC #:
31161620
TAA Compliant:
Yes
 

Documents:

  • Approved-Publication-1
  • Approved-Publication-2
  • Engineering-PIR-1