HSK4-R2.5-4.0 - SELF-CLINCHING KEYHOLE® FASTENERS - HSK4-R™ - PEM® Fastening Products

Fastener Material: Hardened 400 Series Stainless Steel
Standard Finish: Passivated and/or tested per ASTM A380
For Use in Sheet Hardness: HRB 88 / HB 183 or less
Panel 1 (Bottom) Sheet Hardness Max.: HRB 88 / HB 183
Product Category: SELF-CLINCHING KEYHOLE® FASTENERS – HSK4-R™ – Unified
Brand: PEM
Face Mounting Designation Code: R
Neck Diameter Code: 4
PEM Product Family: HSK4-R
Panel 1 Thickness Range (in): .047 – .055
Panel 1 Thickness Range (mm): 1.2-1.39
Panel 2 Thickness Max (in): 0.1
Panel 2 Thickness Max (mm): 2.54
Product Type: OtherFasteners

A Shank Max: 0.047in, 1.2mm
B ± .003_in: 0.256in
B ± 0.075mm/±.003in_in: 0.256in
B ± 0.08_mm: 6.5mm
D Anvil Hole + .003 – .000_in: 0.262in
D Anvil Hole + 0.08_mm: 6.65mm
H – Nom._in: 0.354in
H – Nom._mm: 9mm
M Max._in: 0.198in
M Max._mm: 4.95mm
N ± .003_in: 0.157in
N ± 0.08_mm: 4mm
C Max._in: 0.315in
C Max._mm: 8mm
Panel 1 (Bottom) Edge Distance C1 Min._in: 0.315in
Panel 1 (Bottom) Edge Distance C1 Min._mm: 8mm
Panel 1 (Bottom) Mounting Hole B + .003 – .000_in: 0.316in
Panel 2 (Top) Mounting Hole A1 Nom._in: 0.089in
Panel 2 (Top) Mounting Hole A1 Nom._mm: 2.25mm
Panel 2 (Top) Mounting Hole A2 ± .003_in: 0.177in
Panel 2 (Top) Mounting Hole A2 ± 0.08_mm: 4.5mm
Panel 2 (Top) Mounting Hole A3 ± .003_in: 0.276in
Panel 2 (Top) Mounting Hole A3 ± 0.08_mm: 7mm
Panel 2 (Top) Mounting Hole A4 Min._in: 0.217in
Panel 2 (Top) Mounting Hole A4 Min._mm: 5.5mm
S ± .003_in: 0.155in
S ± 0.08_mm: 3.93mm
Top Sheet Thickness Code: 2.5

Type	Test Sheet Material	Installation (lbs.)	Body Size – Sheet Code /Part No	Installation (kN)	Pushout (lbs.)	Pushout (N)	Side-Load Force Max. (lbs.)	Side-Load Force Max. (N)	Test Sheet Thickness
HSK4-R	300 Series SS HRB 88	9442	HSK4-R2.5-4.0	42	337	1500	202	900	.047” / 1.2mm

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