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Online literature contains the most current information available.
New Type SMTPFLSM™ 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 aboutpotential damage to P.C. boards due to improper secondaryinstallation operations. These fasteners are provided on tape andreel compatible with existing SMT automated installation equipment.

Features and Benefits
  • All metal captive screw assemblyinstalls in one piece utilizing pick andplace method
  • Combination drive, Torx®/slot
  • Solderable finish
  • Screw length code “0” retracts flush inup position
  • Ease of installation
Unit of Measure

Thread Size

N/A M3.5 x 0.6



Thread Code

N/A M3.5

Screw Length Code

N/A 0

A (Shank) Max.

N/A 1.6 mm Type-SMTPFLSM-2.jpg

Min. Sheet Thickness

N/A 1.6 mm

C Max.

N/A 6.27 mm

E1 ± 0.25

N/A 7.9 mm

E2 Nom.

N/A 8.13 mm

G1 ± 0.64

N/A 1 mm

G2 ± 0.64

N/A 6.1 mm

H ± 0.25

N/A 2.5 mm

T1 Nom.

N/A 10.7 mm

T2 Nom.

N/A 15.7 mm

øK - Hole Size in Sheet + 0.08

N/A 6.4 mm

øD - Min. Solder Pad

N/A 10.2 mm

Driver Size

N/A T15

Number of Parts per Reel

N/A 150
Thread Specification1 N/A ASME B1.13M, 6g

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 Fastened

CAD Supplier

N/A PennEngineering® (PEM®)
  • 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.