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Specifications

Self Tapping Screws • Machine Screws • Metric
Self Tapping Screws
18-8 Stainless Steel
T
D
HD 
HH 
K
 L
  NOM.
SCREW SIZE 
SCREW
DIA. 
HEAD
DIAMETER 
HEAD
HEIGHT 
DRIVE
SIZE 
SCREW
LENGTH 
 AB SELF TAPPING
REF.
MIN.
MAX.
MIN.
MAX.
REF.
REF.
4-24
 .1120 .218 .255 .083 R04
6-20 
 .1380 .263 .307 .097 R04  
8-18 
 .1640 .311 .359 .112 R10  
10-16 
 .1900 .359 .411 .127 R10  
12-14 
 .216 .411 .480 .135 R25  
14-14
 .2500 .480 .531 .161 R25  
Machine Screws
18-8 Stainless Steel
T
D
HD 
HH 
K
 L
  NOM.
SCREW SIZE 
SCREW
DIA. 
HEAD
DIAMETER 
HEAD
HEIGHT 
DRIVE
SIZE 
SCREW
LENGTH 
 AB SELF TAPPING
REF.
MIN.
MAX.
MIN.
MAX.
REF.
REF.
2-56*
 .086 .197 .168 .064 R02
4/40
 .1120 .218 .255 .083 R04  
6/32 
 .1380 .263 .307 .097 R10  
8/32
 .1640 .311 .359 .112 R10  
10/24 - 10/32
 .1900 .359 .411 .127 R10  
1/4-20
 .2500 .480 .531 .161 R10  
5/16-18 
 .3125 .600 .656 .198  R31  
3/8-16 .3750 .720 .781 .234 R31
1/2-13 .5000 .872 .938 .251 R50
5/8-11 .6250 1.112 1.188 .324 R50
Metric
18-8 Stainless Steel
T
D
HD 
HH 
K
 L
  NOM.
SCREW SIZE 
SCREW
DIA. 
HEAD
DIAMETER 
HEAD
HEIGHT 
DRIVE
SIZE 
SCREW
LENGTH 
 UNC
REF.
MIN.
MAX.
MIN.
MAX.
REF.
REF.
M2x0.4* .077 3.6 4.3   1.4 R02
M2.5x0.45* .097 4.7 5.9   1.85 R04  
M3x0.5 .118 5.35 6.72   1.88 R04  
M4x0.7 .157 7.80 8.96   2.48 R10  
M5x0.8 .196 9.75 11.2   3.1 R10  
M6x1.0 .236 11.7 13.5   3.8 R25  
M8x1.25 .315 15.62 17.92   4.96 R31  
M10x1.5 .393 19.5 22.4   6.2 R31
M12x1.75 .472 23.4 27   7.44 R50
M16x2 .630 23 34   8.8 R50
*Under development

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Manufacturing & Design

World Leader in High Security Fasteners
Tamper Proof Screws, Tamper-resistant Screws,
Security Fasteners, Security Screws and Bolts.

1230 N. Mondel Dr. • Gilbert, Arizona 85233
Tel: 1-800-558-1082 (U.S.) • 480-503-3801 (International) •
Fax: 1.800.258.1082 • 480-503-3834
E-mail: info@brycefastener.com

KEY-REX™, Keyed-Lok®, Penta-Plus™, Hex-Pin™, and Tam-6lobe™ are
registered trademarks of Bryce Fastener Mfg.

Delivery Time 60 Days. Each Customer Receives Their Own Keyed-Rex® Drive Size.
Prices Subject to Change Without Notice. Publication Date 04/07.
Copyright Bryce Fastener Mfg., Inc., 2006. All Rights Reserved