Item # RDJ3604L, RDJ3600 Inserts - Ring Locked, High Strength On Howmet Aerospace

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Unit of Measure

Insert Type	N/A Standard
Series	N/A RDJ3600
Material Type	N/A 4340 Steel (Alternate 4140 Steel)
Material Specification	N/A MIL-S-5000 (AMS-S-5625)
Heat Treat	N/A 160-180 KSI UTS Min
Finish	N/A Cadmium Plate per AMS-QQ-P-416, Type II plus Carbowax
Internal Thread Lock	N/A Yes
A - Internal Thread, Class 3B	N/A 0.1640-32 UNJC
B - External Thread	N/A 0.3125-18
B - External Thread - Pitch Diameter	N/A 0.2769-0.2789 in
B - External Thread - Minor Diameter	N/A 0.2373-0.2468 in
C - Dia ±.005	N/A 0.170 in
D ±.005	N/A 0.075 in
E ±.015	N/A 0.200 in
F ±.015	N/A 0.280 in
G - Dia ±.005	N/A 0.232 in

Step Drill¹	N/A RCDC21-257
Basic Tap Size²	N/A 0.3125-18 UNC
Wrench Part Number	N/A R1104W
Lockring Drive Tool Part Number	N/A R3604D
Removal Drill Size³	N/A #6

N/A

The external thread has a special pitch diameter and minor diameter which installs into an AS8879 Class 3B, FED-STD-H28/2 Class 3B, or National Class 3 tapped hole.
<5> Internal thread locking feature complies with applicable portion of specification NASM25027 for 450°F.
"B" diameter and minor diameter of thread to be concentric within .003 FIM.
RD3600 Series inserts are designed for maximum loads in tension within the minimum envelope dimensions. The design data table lists test pull-out strenghts developed by the inserts when installed in 356-T6 and 2024-T4 aluminum alloys with ultimate shear strengths of 25,000 and 37,000 psi respectively. The calculated ultimate strengths of bolt heat-treated to 145,000 psi and 180,000 psi are listed for reference and are based on tensile stress areas listed in FED-STD-H28.
Unless otherwise specified dimensions are in inches & ASME Y14.5M.

¹ Step drills are designed for thru hole drilling. When used to drill a blind hole, it may be necessary to grind the drill to suit the depth required.
² Taps are not supplied by Howmet.
³ Removal drills are not supplied by Howmet.

Insert Type