Part # SMPP-256, Nuts for Ultra-Thin Sheets - Type SMPP

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	All Categories Self-Clinching Nuts - Types SP, SMPP - Unified


All Categories > PEM® Brand Fasteners for Metal Sheets and Panels > Nuts for Sheet Metal > Nuts (all) for Installing into Stainless Steel – Types A4, LA4, SP, F4, SMPP > Nuts (all) for Installing into Stainless Steel – Type SP, SMPP > Self-Clinching Nuts - Types SP, SMPP - Unified > Part # SMPP-256


	Part # SMPP-256, Nuts for Ultra-Thin Sheets - Type SMPP - Unified

Type SMPP self-clinching nuts are for installation into ultra-thin sheets.

Installs into stainless steel sheets as thin as .025”.
Corrosion resistance similar to 300 series stainless steel.
Reduced outer dimensions and thinner sheet capabilities compared to type SP thread sizes.
Recommended for use in stainless steel sheets HRB 90 / HB 192 or less.

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Specifications

Thread Size

.086-56 (#2-56)

Thread Code

256

A (Shank) Max.

.024 in

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Rec. Min. Sheet Thickness¹

.025 in

Hole Size in Sheet + .003 - .000

.136 in

C Max.

.135 in

E ± .010

.220 in

T ± .010

.065 in

Min. Dist. Hole C/L to Edge²

.160 in

For Use in Sheet Hardness³

HRB 90 / HB 192 or Less

Thread Specification

Internal, ASME B1.1, 2B

Fastener Material

Age hardened A286 Stainless Steel (non-magnetic)

Standard Finish

Passivated and/or tested per ASTM A380

CAD Supplier

PennEngineering® (PEM®)

¹ For maximum performance, we recommend that you use the maximum shank length for your sheet thickness.
² To minimize sheet distortion and maximize product performance, use a centerline-to-edge value greater or equal to the value specified.
³ HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.

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Part # SMPP-256, Nuts for Ultra-Thin Sheets - Type SMPP - Unified

Thread Size

Thread Code

A (Shank) Max.

Rec. Min. Sheet Thickness¹

Hole Size in Sheet + .003 - .000

C Max.

E ± .010

T ± .010

Min. Dist. Hole C/L to Edge²

For Use in Sheet Hardness³

Thread Specification

Fastener Material

Standard Finish

CAD Supplier

Download our brochure

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Part # SMPP-256, Nuts for Ultra-Thin Sheets - Type SMPP - Unified

Thread Size

Thread Code

A (Shank) Max.

Rec. Min. Sheet Thickness1

Hole Size in Sheet + .003 - .000

C Max.

E ± .010

T ± .010

Min. Dist. Hole C/L to Edge2

For Use in Sheet Hardness3

Thread Specification

Fastener Material

Standard Finish

CAD Supplier

Download our brochure

Product resources

Services

Our Brands

Useful Links

Departments

Rec. Min. Sheet Thickness¹

Min. Dist. Hole C/L to Edge²

For Use in Sheet Hardness³