Key-Rex™
Screws & Bits

• Self Tapping Screws

• Machine Screws

• Micro Selftapping Screws
• Micro Machine Screws
• Metric Machine Screws
Specifications
• Flat Head
• Button Head

Click here to view our complete catalog.

Specifications

Self Tapping ScrewsMachine ScrewsMetric
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.
2-32 .086 .175 .160 .056 .050 R02
4-24 .1120 .235 .220 .070 .060 R04  
6-20 .1380 .280 .265 .085 .075 R04  
8-18 .1640 .330 .315 .095 .085 R10  
10-16 .1900 .380 .365 .110 .100 R10  
12-14 .216 .420 .400 .135 .125 R25  
14-14 .2500 .460 .440 .140 .130 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 
 UNC
REF.
MIN.
MAX.
MIN.
MAX.
REF.
REF.
2-56*
.086 .175 .160 .056 .050 R02
4/40
.1120 .235 .220 .070 .060 R04  
6/32 
.1380 .280 .265 .085 .075 R04  
8/32
.1640 .330 .315 .095 .085 R10  
10/24 - 10/32
.1900 .380 .365 .110 .100 R10  
1/4-20
.2500 .460 .440 .140 .130 R10  
5/16-18 
.3125 .580 .565 .180 .165 R31  
3/8-16 .3750 .690 .670 .215 .200 R31
1/2-13 .5000 .920 .890 .295 .275 R50
5/8-11 .6250 1.050 .990 .341 .321 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 4.4 4.0 1.4 1.0 R02
M2.5x0.45* .097 4.8 4.3 1.0 1.3 R02  
M3x0.5 .118 5.9 5.5 1.8 1.5 R04  
M4x0.7 .157 8.4 8.0 2.4 2.1 R10  
M5x0.8 .196 9.7 9.2 2.8 2.5 R10  
M6x1.0 .236 11.8 11.5 3.6 3.3 R25  
M8x1.25 .315 14.8 14.3 4.6 4.15 R31  
M10x1.5 .393 17.5 17.0 5.5 5.0 R31
M12x1.75 .472 23.5 22.5 7.5 6.9 R50
M16x2 .630 26.7 25 8.95 8.1 R50

Home | About Us | Support | Services | What's New | Products | Applications
Application Assistance Form | Ordering



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