TT Miniature and Close-To-Edge

Inch


Features

  • Precisely stack mating panels in limited space and close-to-edge applications.
  • Self-clinching design provides simple, permanent installation in aluminum, carbon steel and stainless steel sheets.
  • Custom sizes available by request.
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Loading Parts

General

ThreadThread CodeSheetCMax.DMin.HNom.
Minimum ThicknessHole SizeMinimum Distance Hole Center to Edge
0-80 (1)080.012.095-.097.090.094.125.125
2-56 (1)256.012.125-.127.120.124.200.156
4256.037.166-.169.126.165.194
4-40 (1)440.037.166-.169.126.165.220.194
(1) Unified threads per ASME B1.1, 2B.

Length

Thread CodeLength Code / Length
.094.125.187.250.275.312.375
080.091-.096 (1).122 -.127 (1).184-.189 (1).247-.252 (2).272-.277 (2).309-.314 (2).372-.377 (3)
256.091-.096 (1).122 -.127 (1).184-.189 (1).247-.252 (1).272-.277 (2).309-.314 (2).372-.377 (2)
4256.089 -.096 (1).120 -.127 (1).182-.189 (1).245-.252 (1).270-.277 (2).307-.314 (2).370-.377 (2)
440.089 -.096 (1).120 -.127 (1).182-.189 (1).245-.252 (1).270-.277 (1).307-.314 (2).370-.377 (2)
080.434-.439 (3)–––––
Thread CodeLength Code / Length
.437.500.562.625.687.750
256.434-.439 (3).497-.502 (3).559-.564 (3).622-.627 (3)
4256.432-.439 (3).495-.502 (3).557-.564 (3).620-.627 (3).682-.689 (3).745-.752 (3)
440.432-.439 (2).495-.502 (3).557-.564 (3).620-.627 (3).682-.689 (3).745-.752 (3)
(1) Type 1 (2) Type 2 (3) Type 3

Material & Finish

Material CodeMaterial DescriptionFinish CodeFinish DescriptionFor Use in Sheet Hardness
HRB 70Max.HRB 80Max.HRB 88Max.
ST (1)Heat Treated1215 Carbon SteelZZinc (SC1) with Type III Clear Chromate per ASTM B633
SS300-Series Stainless SteelPPassivated and/orTested per ASTM A967
S4 (2)Heat Treated 400-SeriesStainless SteelPPassivated and/orTested per ASTM A967
(1)ST material code not available for maximum standoff body diameters .094” (2.39mm) and .124” (3.16mm). (2)S4 material code not available for maximum standoff body diameter .165” (4.20mm).

Installation

  1. Prepare correct sized mounting hole in sheet. Do not deburr edges.
  2. Insert standoff through hole in punch side of the sheet and into the anvil as shown.
  3. Squeeze the sheet and standoff head between parallel anvil and punch surfaces. Use only enough pressure to seat the standoff head flush with the sheet.
  4. Anvil with countersink is required for standoff with maximum body diameters.
  5. For installation in stainless steel, the sheet should be annealed and avoid standoff installation next to bends or other highly cold-worked areas. The hole punch diameter should be no greater than .001” (0.025mm) over the minimum recommend- ed mounting hole diameter and kept sharp to minimize work hardening around the hole.

Anvil and Punch Dimensions

Standoff C Max.DimensionABAnvil Part NumberPunch Part Number
.094.112-.114.097-.099TL1268TL1287
.124.142-.144.127-.129TL1269TL1287
.165.169-.172TL1087TL1287

Performance

Thread CodeStand. Matl. CodeTest Sheet Thick- nessTest Sheet Material
5052-H34 AluminumCold-rolled Steel300-Series Stainless Steel
Installation (lbs)Push-out (lbs)Torque- out(in-lbs) (2)Pull- thru (lbs) (2)Installation (lbs)Push-out (lbs)Torque- out(in-lbs) (2)Pull- thru (lbs) (2)Installation (lbs)Push-out (lbs)Torque- out(in-lbs) (2)Pull- thru (lbs) (2)
080SS.013900201.240(3)(3)(3)(3)
.017600201.2401000351.674(3)(3)(3)(3)
S4.0132500331.378
.0172500452.278
256SS.0131000252.045(3)(3)(3)(3)
.017700252.0451100402.585(3)(3)(3)(3)
S4.0132500332.2110
.0172500452.6110
4256440ST.040700501032011007510357(3)(3)(3)(3)
SS.040700501032011007510357(3)(3)(3)(3)
(1) Performance data represents the average result when all installation specifications are strictly followed. Variations in panel hole size, thickness, material and installation method will affect the loads. PENCOM strongly encourages testing in the application. (2) Torque-out and pull-thru performance may vary depending on the strength and type of screw being used. (3) Not recommended.