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New Type SMTPFLSM&#8482 surface mount spring-loaded panel fastener provides ease of installation and high precision positioning without loose hardware. It mounts on P.C. boards in the same manner and at the same time as other surface mount components prior to the automated reflow solder process. This alleviates concerns about potential damage to P.C. boards due to improper secondary installation operations. These fasteners are provided on tape and reel compatible with existing SMT automated installation equipment.

Features and Benefits

All metal captive screw assembly installs in one piece utilizing pick and place method
Combination drive, Torx®/slot
Solderable finish
Screw length code “0” retracts flush in up position
Ease of installation

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Unit of Measure

Items	SMTPFLSM-440-0ET ReelFast® Surface Mount Spring-Loaded Panel Fastener - Unified Type SMTPFLSM™ Add To Cart Request Quote	SMTPFLSM-440-1ET ReelFast® Surface Mount Spring-Loaded Panel Fastener - Unified Type SMTPFLSM™ Add To Cart Request Quote	SMTPFLSM-632-0ET ReelFast® Surface Mount Spring-Loaded Panel Fastener - Unified Type SMTPFLSM™ Add To Cart Request Quote	SMTPFLSM-632-1ET ReelFast® Surface Mount Spring-Loaded Panel Fastener - Unified Type SMTPFLSM™ Add To Cart Request Quote
Thread Size	N/A .112-40 (#4-40)	N/A .112-40 (#4-40)	N/A .138-32 (#6-32)	N/A .138-32 (#6-32)
Type	N/A SMTPFLSM
Thread Code	N/A 440	N/A 440	N/A 632	N/A 632
Screw Length Code	N/A 0	N/A 1	N/A 0	N/A 1
A (Shank) Max.	N/A .063 in
Min. Sheet Thickness	N/A .063 in
C Max.	N/A .215 in	N/A .215 in	N/A .247 in	N/A .247 in
G1 ± .025	N/A .040 in	N/A .100 in	N/A .040 in	N/A .100 in
G2 ± .025	N/A .210 in	N/A .270 in	N/A .240 in	N/A .300 in
H ± .010	N/A .100 in
T1 Nom.	N/A .38 in	N/A .38 in	N/A .42 in	N/A .42 in
T2 Nom.	N/A .55 in	N/A .55 in	N/A .62 in	N/A .62 in
øK - Hole Size in Sheet + .003 - .000	N/A .220 in	N/A .220 in	N/A .252 in	N/A .252 in
øD - Min. Solder Pad	N/A .340 in	N/A .340 in	N/A .400 in	N/A .400 in
Driver Size	N/A T15
Number of Parts per Reel	N/A 200	N/A 150	N/A 150	N/A 150
Thread Specification¹	N/A ASME B1.1, 2A
Material Retainer	N/A Carbon Steel
Material Screw	N/A Hardened Carbon Steel
Material Spring	N/A 300 Series Stainless Steel
Finish Retainer	N/A Electro-plated Tin ASTM B545, Class A with Preservative Coating, Annealed
Finish Screw	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless
Finish Spring	N/A Natural Finish
CAD View	N/A Unfastened
Inventory	N/A {0}	N/A {0}	N/A {0}	N/A {0}
¹ As with all Class 2A/6g external threads with an additive finish, the maximum major and pitch, after plating, may equal basic sizes and be gauged to Class 3A/4h, per ANSI B1.1, Section 8, Table 3A and ANSI B1.13M, Section 8, paragraph 8.2.

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