US Section E - page 91

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E
Helical Thread Inserts
••18-8 stainless steel
••Corrosion resistant
••22 microinch or better
surface finish provides
a smooth running, wear
resistant fastening
••Low Prices!
The insert system was devised as a simple method of repairing stripped or damaged threads in any metal or valuable parts.
Inserts are also used in new products such as die castings or plastics, where ex­ces­sive stress on threads could cause dam­age
or failure.
Inserts are helical coils of diamond shaped 18-8 stainless steel wire which meets or exceeds AMS-7245 spec­i­fi­ca­tion. Inserts
are sized to provide a precisely controlled interference fir in an oversize tapped hole. The tap used for this pur­pose is the same
pitch as the original thread, but has a larger diameter. When the insert is installed, the hole is returned to its original size.
Because the insert provides an enlarged bearing area, the restored fastening is stronger than the original. It is also more
durable, since the stainless steel thread is generally tougher than the original ma­te­ri­al. Inserts are corrosion resistant and
their 22 microinch or better surface finish provides a smooth-running, wear-resistant fas­ten­ing.
Repair Kits -UNC
Kit includes: Inserts, Tap, Tool and Case
Thread Size Part Number Inserts per Kit
4 – 40 RC33540 12
5 – 40 RC33550 12
6 – 32 RC33560 12
8 – 32 RC33580 12
10 – 24 RC33600 12
12 – 24 RC33620 12
¼ – 20 RC33040 12
5⁄16 – 18 RC33050 10
3⁄8 – 16 RC33060 10
7⁄16 – 14 RC33070 6
½ – 13 RC33080 6
9⁄16 – 12 RC33090 6
5⁄8 – 11 RC33100 6
¾ – 10 RC33120 4
7⁄8 – 9 RC33140 6
1 – 8 RC33160 6
11⁄8 – 7 RC33180 5
1 1/4 – 7 RC33200 4
13⁄8 – 6 RC33220 4
1½ – 6 RC33240 4
Inserts in kits are 1.5 times screw diameter in length.
Inserts Only – UNC
Thread
Size
Part
Number Length
¼ – 20 RC03043 .375
¼ – 20 RC03044 .500
3⁄8 – 16 RC03063 .563
3⁄8 – 16 RC03064 .750
½ – 13 RC03083 .750
½ – 13 RC03084 1.000
5⁄8 – 11 RC03103 .983
5⁄8 – 11 RC03104 1.250
¾ – 10 RC03123 1.125
¾ – 10 RC03124 1.500
1 – 8 RC03163 1.500
1 – 8 RC03164 2.000
11⁄8 – 7 RC03183 2.500
1¼ – 7 RC03203 2.500
13⁄8 – 6 RC03223 2.750
1½ – 6 RC03243 3.000
Simple In­stal­la­tion:
Drill Tap
Install Tang Removal