Formerly Emhart Teknologies & Infastech

Made to Order Fasteners

Potted (with Epoxy) or Mechanically Installed Self-locking Insert

Potted Insert

(NAS1832 type) Honeycomb Panel Mechanical Fastening Hardware

Materials:
Titanium Alloy: 6AL4V per AMS 4928 or AMS 4965
Aluminum Alloy: 6061 – T6 per AMS 4150
Stainless Steel: 316 per AMS 5648
Other materials as required

Note: Threads are per Spiralock thread standard SPL-9018

Finish:
Anodize, Passivate, Dry Film Lube, CAD
Other finishes as required

Installation Tab:
Installation tab furnished in plastic or AL Alloy, adhesive backed


 

Thread Size Spiralock P/N "A"
Min. - Max.
"B"
Min. - Max.
"C"
Min. - Max.
"D"
Min. - Max.
"E"
Min. - Max.
"F"
Min. - Max.
"G"
Min. - Max.
Weight (lbs)
#4-40 FE04-40-0015 .370-.375 .040-.060 .190-.200 .302-.322 .200-.220 .122-.132 .276-.284 0.0020
#6-32 FE06-32-0035 .432-.442 .040-.060 .220-.240 .365-.385 .240-.260 .148-.158 .311-.319 0.0028
#8-32 FE08-32-0027 .495-.500 .040-.060 .280-.300 .428-.448 .300-.320 .172-.182 .363-.371 0.0058

 

Double-hex (12-Point) Nuts

Double-hex (12-Point) Nuts

Material: Alloy steel, 48 HRC Max.; other materials available upon request
Coating / Plating: Per customer requirements

* Sizes #8 through 1" are available on made-to-order basis
** Thread pitch diameter to bearing surface

 

Spiralock Thread Size* Width Across Flats Nut Height Max Flange Diameter Max. Perpendicularity**
¼ - 28 0.376 - 0.367 0.300 0.460 0.003
5/16 - 24 0.439 - 0.430 0.363 0.560 0.004
3/8 - 24 0.502 - 0.492 0.425 0.670 0.005
7/16 - 20 0.564 - 0.553 0.488 0.770 0.006
½ - 20 0.627 - 0.616 0.550 0.870 0.007

 

Captive Washer NutsCaptive Washer Nuts

Materials:
Nut: Alloy Steel with Cadmium Plate
Washer: Carbon Steel with Dry Film Lube

Metric sizes and other materials are also available

 

 

Spiralock Thread Size* Width Across Flats Nut Height Max. Flange Diameter Max.
#8 - 36 0.220 0.170 0.340
#10 - 32 0.250 0.188 0.380
¼ - 28 0.312 0.219 0.460
5/16 - 24 0.375 0.266 0.560
3/8 - 24 0.437 0.282 0.660
7/16 - 20 0.500 0.328 0.760
½ - 20 0.562 0.480 0.860
9/16 - 18 0.687 0.540 1.000
5/8 - 18 0.750 0.600 1.100
¾ - 16 0.875 0.720 1.310
7/8 - 14 1.000 0.800 1.480
1 - 12 1.125 0.960 1.690

 

Captive Belleville Washer NutsCaptive Belleville Washer Nuts

Materials:
Nut: 17–4 PH, Condition H1025
Washer: 17–7 PH, Condition H1050
Coating / Plating: As required

**Overall height will vary as spring is compressed
Metric sizes and other materials are also available

 

Size Width Across Flats Nut Height ** Flange Diameter Max. Minimum Spring Load Maximum Spring Load
1/4 - 28 .312 .22 - .37 .68 200 1200
5/16 - 24 .375 .30 - .41 .80 250 1600
3/8 - 24 .438 .32 - .43 .87 250 2000
7/16 - 20 .500 .36 - .47 .93 TBD TBD

 

MS21042 and MS21043 Equivalent NutsMS21042 and MS21043 Equivalent Nuts

This nut is equivalent to MS21042 and MS21043 except for the prevailing torque feature that is replaced by the Spiralock locking thread technology.

Nut characteristics:
- Thin-walled (reduced hex for thread size)
- High strength
- Precision

Material:
Carbon Steel; 18-8 Stainless Steel; Alloy A286
Coating / Plating:
- Cadmium plate per QQ-P-416, Type II, Class 2 and Dry Film Lube per MIL-PRF-46010
- Silver plate per AMS 2410 and wax

 

Spiralock Thread Size Width Across Flats Nut Height Max. Flange Diameter Max. Perpendicularity
#2 - 56 0.125 0.100 0.167 0.0025
#4 - 40 0.156 0.125 0.206 0.003
#6 - 32 0.187 0.141 0.244 0.003
#8 - 32 0.218 0.188 0.290 0.003
#10 - 32 0.250 0.188 0.330 0.003
¼ - 28 0.312 0.219 0.420 0.003
5/16 - 24 0.375 0.266 0.520 0.004
3/8 - 24 0.437 0.282 0.620 0.004

 

NEW! Micro Threaded Inserts for Compact Electronics

Spiralock Brass Ultrasonic Insert A (mm) C (mm) E (mm)   Spiralock Steel Pressed-in Insert A (mm) C (mm) E (mm)
M1.6x0.35 1.75 +/- 0.05 2.30 +/- 0.05 2.50-2.43   M1.6x0.35 1.15 +/- 0.05 2.05 +/-0.05 2.76 +/- 0.04
Material: Brass 360, no coating   Material: Carbon Steel 1214, electroless Nickel coating

 

Other sizes and configurations can be provided. Please contact Spiralock sales and engineering for details.

Other Sizes

 

New Spiralock® micro threaded inserts for plastics introduce ideal fastener solutions to attach components in compact electronic assemblies. Installation is achieved by pressing the insert into a mounting hole using either ultrasonic insertion equipment or a thermal press. When installed ultrasonically, the frictional heat caused by the vibration then melts the plastic surrounding the insert and, when the vibration ceases, the plastic solidifies to lock the insert into place. Use of a thermal press will melt the plastic surrounding the insert to result in permanent installation.