Keyed-Lok®
Screws & Bits
• Sheet Metal Screws

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

• Digital Light Projectors (LCD/DLP)
• Auto Airbags

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Specifications —
Flat Head HD SMS, M/S™
18-8 Stainless Steel
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 .168 .197 .064 K04
4-24
 .1120 .218 .255 .083 K04
5-20 .125 .240 .281 .090 K04
6-20 
 .1380 .263 .307 .097 K10  
8-18 
 .1640 .311 .359 .112 K10  
10-16 
 .1900 .359 .411 .127 K10  
12-14 
 .216 .411 .480 .140 K25  
14-14
 .2500 .480 .531 .161 K25  
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 K04
4/40
 .1120 .218 .255 .083 K04  
6/32 
 .1380 .263 .307 .097 K10  
8/32
 .1640 .311 .359 .112 K10  
10/24 - 10/32
 .1900 .359 .411 .127 K10  
1/4-20
 .2500 .480 .531 .161 K25  
5/16-18 
 .3125 .600 .656 .198  K31  
3/8-16 .3750 .720 .781 .234 K31
1/2-13 .5000 .872 .938 .251 K50
5/8-11 .6250 1.112 1.188 .324 K50
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 K04
M2.5x0.45* .097 4.7 5.9   1.85 K04  
M3x0.5 .118 5.35 6.72   1.88 K04  
M4x0.7 .157 7.80 8.96   2.48 K10  
M5x0.8 .196 9.75 11.2   3.1 K10  
M6x1.0 .236 11.7 13.5   3.8 K25  
M8x1.25 .315 15.62 17.92   4.96 K31  
M10x1.5 .393 19.5 22.4   6.2 K31
M12x1.75 .472 23.4 27   7.44 K50
M16x2 .630 23 34   8.8 K50

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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