PEMPEM Fastener Catalogue
ALA™ Floating Self-Clinching Fasteners

Dimensions

PDF page 13 · PEM Fastener Catalogue

Non-locking — AS/AC/A4

Technical drawing of a circular component cross-section: Dimension E: Represents the outermost diameter. Features: Multiple concentric and eccentric circular elements. Reference: Includes vertical and horizontal centerlines for alignment.This technical drawing is a cross-sectional view of a self-clinching fastener, likely a blind nut. Key Dimensional Parameters: A: Width of the clinching/base section. T1: Overall depth/thickness of the cap portion. C: Diameter of the base/clinching interface. D: Overall external diameter of the body. Key Features: Internal Threading: Centrally located within the body. Blind Design: Features a closed cap to prevent fluid or debris ingress. Clinching Profile: Noted as variable, designed for permanent installation in sheet metal.

Clinching profile may vary.

Technical diagram showing a top-down view of a mechanical component: Central feature: A circular opening housed within a square element. Housing: Outer concentric circles with a serrated or threaded ring detail. Float specification: An orange arrow points to the internal square, corresponding to text indicating a float of .015”/0.38 mm minimum in all directions from the center (.030”/0.76 mm total. Alignment: Horizontal and vertical centerlines intersect at the midpoint of the component.

PEM® Double Squares registered trademark.

Float – .015"/0.38 mm minimum, in all directions from center, .030"/0.76 mm total.

Self-locking — LAS/LAC/LA4

Subject: Technical engineering diagram of a circular component, likely a tube or pipe end. Key Features: Dimension E: Represents the total outer diameter of the assembly. Concentric/Eccentric Rings: Shows multiple circular layers, with an arrow pointing to an internal feature or "Formed" area. Centerlines: Horizontal and vertical dashed lines indicate symmetry and axial center. Line Styles: Uses solid lines for visible edges and dashed lines for hidden features or internal diameters.Technical cross-section diagram of a clinching fastener with the following dimensional labels: A: Thickness of the clinching base/flange. C: Outer diameter of the base. D: Outer diameter of the body/housing. T₂: Length/depth of the threaded internal component. Key Features: Internal threads, multi-piece assembly, and cross-hatched sections indicating a metal component.

Threaded Top Elliptically Formed. Clinching profile may vary.

Unified — all dimensions are in inches.

Thread SizeType – Non-Locking (Fastener Material)Type – Self-Locking (Fastener Material)Thread CodeShank CodeA (Shank) Max.Min. Sheet ThicknessHole Size in Sheet +.003 −.000C Max.D Max.E ±.015T1 Max.T2 Max.Min. Dist. Hole ℄ To Edge
Steel300 Series Stainless400 Series StainlessSteel300 Series Stainless400 Series Stainless
.112-40 (#4-40)ASACA4LASLACLA44401.038.038.290.289.290.360.130.190.30
2(1).054.054
.138-32 (#6-32)ASACA4LASLACLA46321.038.038.328.327.335.390.130.200.32
2(1).054.054
.164-32 (#8-32)ASACA4LASLACLA48321.038.038.368.367.365.440.130.210.34
2(1).054.054
.190-24 (#10-24)ASACA4LASLACLA40241.038.038.406.405.405.470.170.270.36
2(1).054.054
.190-32 (#10-32)ASACA4LASLACLA40321.038.038.406.405.405.470.170.270.36
2(1).054.054
.250-20 (1/4-20)ASACLASLAC04202.054.054.515.514.510.600.210.310.42
.250-28 (1/4-28)ASACLASLAC04282.054.054.515.514.510.600.210.310.42

Metric — all dimensions are in millimeters.

Thread Size x PitchType – Non-Locking (Fastener Material)Type – Self-Locking (Fastener Material)Thread CodeShank CodeA (Shank) Max.Min. Sheet ThicknessHole Size in Sheet +0.08C Max.D Max.E ±0.38T1 Max.T2 Max.Min. Dist. Hole ℄ To Edge
Steel300 Series Stainless400 Series StainlessSteel300 Series Stainless400 Series Stainless
M3 x 0.5ASACA4LASLACLA4M310.970.977.377.357.379.143.314.837.62
2(1)1.381.38
M4 x 0.7ASACA4LASLACLA4M410.970.979.359.339.2811.183.315.348.64
2(1)1.381.38
M5 x 0.8ASACA4LASLACLA4M510.970.9710.3110.2910.2911.944.326.869.14
2(1)1.381.38
M6 x 1ASACLASLACM621.381.3813.0813.0612.9615.245.347.8810.67

(1) This shank code is not available for A4 and LA4 nuts.