CONCEALED-HEAD SELF-CLINCHING STUDS AND STANDOFFS BULLETIN

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1 ONEED-HED SE-INHING STUDS ND STNDOS BUETIN H 813 R e v 814

ONEED-HED SE-INHING STUDS ND STNDOS PEM self-clinching concealed-head studs and standoffs install permanently in steel or aluminum sheets as thin as / mm to provide strong and reusable threads for

This feature additionally serves to satisfy applications where the sheet must remain completely sealed from air, liquid, dust, gases, or other potentially infiltrating elements.

2 ONEED-HED SE-INHING STUDS ND STNDOS PEM self-clinching concealed-head studs and standoffs install permanently in steel or aluminum sheets as thin as / mm to provide strong and reusable threads for mating hardware in a wide range of assembly applications. Their concealed-head design allows the side of the sheet opposite installation to remain smooth and unmarred. This feature additionally serves to satisfy applications where the sheet must remain completely sealed from air, liquid, dust, gases, or other potentially infiltrating elements. Sheet preparation for their installation requires only a blind milled hole to the recommended size and minimum depth. Using a PEMSERTER or other standard press, installation is accomplished by placing the fastener in the hole and applying sufficient squeezing force. The fastener head then locks securely in the sheet and can handle substantial loads. oncealed-head Stud To meet national aerospace standards and to obtain testing documentation, product must be ordered using appropriate NSM45938 part number. heck our web site for a complete Military Specification and National erospace Standards Reference Guide (Bulletin NSM). oncealed-head Standoff Back side of sheet remains smooth H-2

3 ONEED-HED SE-INHING STUDS ND STNDOS UMINUM ND STINESS STEE STUDS - TYPES H, H, H ND H Dimple (Registered Trademark) / mm E ll dimensions are in inches. METRI UNIIED ength ±.015 (ength code is in 16ths of an inch) Mounting Depth Dist. Sheet Dia. of E In Size luminum Stainless Thick (Shank) ±.010 ttached ness (1) Parts H H N.172 (#4-40) cfh H H H (#6-32) cfh H cha chc (#8-32) cfh H H H 032 na (#10-32) cfh H ll dimensions are in millimeters. ength ±0.4 Size x (ength code is in millimeters) Sheet Mounting Pitch Dia. luminum Stainless Thick- ness M3 x 0.5 M4 x 0.7 M5 x 0.8 Depth of (1) Dist. E In (Shank) ±0.25 ttached Parts H H M N 4.37 H H H H M H H H H M5 N N H H (1) holes may be deeper than minimums except where sheet material is at or near minimum thickness. asteners should always be installed so the flange is flush with the surface of the sheet. N Not available. PRT NUMBER DESIGNTION H H H H Material ength H-3

4 ONEED-HED SE-INHING STUDS ND STNDOS STINESS STEE STNDOS - TYPES SS ND SOS TYPE SS TYPE SOS B B B Two Groove (Registered Trademark) H H Style #1 Style #2 Style #3 ll dimensions are in inches. METRI UNIIED ength (ength code is in 16ths of an inch) Sheet Mounting Size Thick- Dia. Stainless ness Depth of (4) Depth B ull (Shank) (5) SS (1) 4 (2) 5 (2) 6 (2) 8 (3) 10 (3) 12 (3) 16 (3) (#4-40) SOS SS (1) 4 (1) 5 (2) 6 (2) 8 (3) 10 (3) 12 (3) 16 (3) (#6-32) SOS SS (1) 4 (1) 5 (2) 6 (2) 8 (3) 10 (3) 12 (3) 16 (3) (#8-32) SOS SS (1) 4 (1) 5 (1) 6 (1) 8 (2) 10 (3) 12 (3) 16 (3) (#10-32) SOS SS (1) 4 (1) 5 (1) 6 (1) 8 (2) 10 (2) 12 (3) 16 (3) (1/4-20) SOS ll dimensions are in millimeters. ength Sheet Size x (ength code is in millimeters) Thick- Pitch Stainless ness m3 x 0.5 m4 x 0.7 m5 x 0.8 Mounting Diameter Depth of (4) Depth B ull (Shank) (5) SS m3 4 (1) 8(2) 6 (1) 10 (3) 12 (3) 16 (3) 20 (3) 25 (3) SOS 8 (3) SS m4 4 (1) 6 (1) 10(2) 8 (2) 12 (3) 16 (3) 20 (3) 25 (3) SOS 10 (3) SS m5 4 (1) 6 (1) 8 (1) 10 (2) 12 (2) 16 (3) 20 (3) 25 (3) SOS H Dist. Nom. / H Dist. Nom. / m6 x 1 SOS m6 4 (1) 6 (1) 8 (1) 10 (2) 12 (2) 16 (3) 20 (3) 25 (3) (1) Style #1. Minimum thread length is equal to barrel length. Screw might not pass through shank end. Screws with lengths exceeding should not be used or they may cause jacking-out of standoff from the sheet. (2) Style #2. Screw might not pass through unthreaded end. Screws with lengths exceeding should not be used or they may cause jacking-out of standoff from the sheet. (3) Style #3.. (4) mounting holes may be deeper than minimums except where sheet material is at or near minimum thickness. asteners should always be installed so the flange is flush with the surface of the sheet. (5) If standoff is used as a bushing, the hole in attached part must not exceed B plus.020 / 0.51 mm. PRT NUMBER DESIGNTION S S SO S Material ength H-4

5 PERORMNE DT (1) ONEED-HED SE-INHING STUDS ND STNDOS MTERI ND INISH SPEIITIONS s astener Materials inish or Use In Sheet Hardness (1) Passivated External, Internal, 300 Series and/or HRB 70 / HRB 50 / SME B1.1 2 / SME B1.1 2B / luminum Stainless No inish tested per HB 125 HB 89 SME B1.13M, 6g SME B1.13M, 6H STM 380 or ess or ess H H H H SS SOS (1) HRB - Hardness Rockwell B Scale. HB - Hardness Brinell. INSTTION 1. Mill a round blind hole to the correct minimum depth. 2. Place fastener into anvil hole. 3. Place the mounting hole over the shank of the fastener. s H, H, H, H oncealed-head studs PUNH s SOS, SS oncealed-head standoffs PUNH 4. With punch and anvil surfaces parallel, apply squeezing force until the flange is flush with the mounting sheet. *End mills available from PennEngineering. See chart below / 6.35mm / 6.35mm NVI NVI PEMSERTER Installation Tooling ll dimensions are in inches. UNIIED D Punch nvil Part Number Part Number H / H / H / H H / H / H / H H / H / H / H H / H / H / H SS / SOS SS / SOS SS / SOS SS / SOS SS / SOS D ll dimensions are in millimeters. METRI D Punch nvil Part Number Part Number H / H / H / H M H / H / H / H M H / H / H / H M SS / SOS M SS / SOS M SS / SOS M SS / SOS M D END MI INORMTION Double-ended, two-flute H.S.S. center-cutting end mills are available from stock. PennEngineering does not manufacture center-cutting end mills, but we do keep a supply in stock for your convenience. Required Size PEM astener End Mill Part No. 440, M3 H, H, H, H Studs.172 HM-172 SOS, SS Standoffs.213 HM H, H, H, H Studs.213 HM-213 SOS, SS Standoffs.290 HM , M4 H, H, H, H Studs.290 HM-290 SOS, SS Standoffs.312 HM , M5 H, H, H, H Studs.312 HM-312 SOS, SS Standoffs.344 HM , M6 SOS Standoffs.390 HM-390 H-5

ONEED-HED SE-INHING STUDS ND STNDOS PERORMNE DT (1) Test Sheet Material Tightening old-rolled 5052-H34 luminum Torque Ref. Installation Pullout Installation Pullout (in. lbs.) (lbs.

6 ONEED-HED SE-INHING STUDS ND STNDOS PERORMNE DT (1) Test Sheet Material Tightening old-rolled 5052-H34 luminum Torque Ref. Installation Pullout Installation Pullout (in. lbs.) (lbs.) (lbs.) (lbs.) (lbs.) oncealed-head Standoffs Test Sheet Material Tightening old-rolled steel 5052-H34 luminum Torque Ref. Installation Pullout Installation Pullout (N m) (kn) (N) (kn) (N) oncealed-head Standoffs UNIIED , , css , , , , , , , , , , csos , , , , , , oncealed-head Studs , , chc , , , , , , , , cfhc , , , , , , (2) (2) 1, cha (2) (2) 1, (2) (2) 2, (2) (2) 4, (2) (2) 1, cfha (2) (2) 2, (2) (2) 3, (2) (2) 3, METRI m css m m m csos m m m oncealed-head Studs m chc m m m cfhc m m m3 0.3 (2) (2) cha m4 1.2 (2) (2) m (2) (2) m3 0.3 (2) (2) cfha m4 1.2 (2) (2) m (2) (2) (1) Published installation forces are for general reference. ctual set-up and confirmation of complete installation should be made by observing proper seating of fastener as described in the installation steps. Other performance values reported are averages when all proper installation parameters and procedures are followed. Variations in mounting hole size, sheet material, and installation procedure may affect performance. Performance testing this product in your application is recommended. We will be happy to provide technical assistance and/or samples for this purpose. (2) Not recommended. ook for the PEM dimple trademark on studs and the PEM two groove trademark on standoffs. Regulatory compliance information is available in Technical Support section of our website PennEngineering. Specifications subject to change without notice. See our website for the most current version of this bulletin. H-6 Technical support techsupport@pemnet.com

SELF-CLINCHING STANDOFFS BULLETIN

SELF-CLINCHING STANDOFFS BULLETIN BUETIN SO 213 R e v 414 PEM self-clinching standoffs, which use the proven self-clinching design, provide ideal solutions for applications where mounting, spacing or stacking of panels, boards or components