 The correct application of torque is essential to most connector applications where Jam Nut receptacle connectors are used. The sealing components (usually an “O” ring) must be compressed, but not to the point of damage. Another consideration when tightening Jam Nuts is the thread strength. This is extremely important in the various types of aluminum and composite connectors.
DMC Jam Nut Socket tools have been developed specially for the installation of Jam Nut receptacle connectors. They are available in a versatile composite construction which is an excellent choice for OEM assembly areas due to their light weight, and the non marking surfaces, a durable machined aluminum series and the traditional “General Purpose” formed steel socket for non-torque specific applications.
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COMPOSITE JAM NUT SOCKETS
ALUMINUM JAM NUT SOCKETS
Also available are formed Steel Jam Nut sockets. These are plated for corrosion resistance, and have drive holes to accommodate a metal rod, or similar, drive tool.
TYPICAL JAM NUT SOCKET PART NUMBER BREAKDOWN |
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| BT – J – | XXX | XX | X |
| Basic P/N | Size Designator (see chart below) |
Material: Blank = Composite AL = Aluminum S = Steel |
Special Configuration: Blank = Standard 1Thru X = Non-Standard |
To find the correct jam nut socket for your application, measure across the flats of the jam nut you are working with. Next, find the size range in the lower table. Listed beside it will be the socket you need.
COMPOSITE OR METAL JAM NUT SOCKETS |
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DMC Part Number |
Fits Jam Nut Size: Inches |
Fits Jam Nut Size: Millimeters |
Square Drive |
Outside
|
BT-J-117 |
.608 to .628 | 15.41 to 15.95 | 1/4 | .914 |
BT-J-118* |
.628 to .649 | 15.95 to 16.48 | 1/4 | .955 |
BT-J-120 |
.671 to .693 | 17.04 to 17.60 | 1/4 | .010 |
BT-J-121 |
.693 to .717 | 17.60 to 18.21 | 1/4 | 1.04 |
BT-J-122* |
.717 to .741 | 18.21 to 18.82 | 1/4 | 1.07 |
BT-J-123 |
.741 to .765 | 18.82 to 19.43 | 1/4 | 1.10 |
BT-J-124 |
.765 to .791 | 19.43 to 20.09 | 1/4 | 1.13 |
BT-J-125 |
.791 to .818 | 20.09 to 20.77 | 1/4 | 1.16 |
BT-J-126 |
.818 to .845 | 20.77 to 21.46 | 1/4 | 1.19 |
BT-J-127 |
.845 to .873 | 21.46 to 22.17 | 1/4 | 1.22 |
BT-J-128 |
.873 to .902 | 22.17 to 22.91 | 1/4 | 1.26 |
BT-J-129 |
.902 to .933 | 22.91 to 23.69 | 1/4 | 1.29 |
BT-J-130 |
.933 to .964 | 23.69 to 24.48 | 3/8 | 1.33 |
BT-J-131 |
.964 to .996 | 24.48 to 25.29 | 3/8 | 1.36 |
BT-J-132 |
.996 to 1.030 | 25.29 to 26.16 | 3/8 | 1.41 |
BT-J-133 |
1.030 to 1.064 | 26.16 to 27.02 | 3/8 | 1.45 |
BT-J-134 |
1.064 to 1.100 | 27.02 to 27.94 | 3/8 | 1.51 |
BT-J-135 |
1.100 to 1.137 | 27.94 to 28.87 | 3/8 | 1.55 |
BT-J-136 |
1.137 to 1.175 | 28.87 to 29.84 | 3/8 | 1.59 |
BT-J-137 |
1.175 to 1.214 | 29.84 to 30.83 | 3/8 | 1.63 |
BT-J-138 |
1.214 to 1.255 | 30.83 to 31.87 | 3/8 | 1.69 |
BT-J-139 |
1.255 to 1.297 | 31.87 to 32.94 | 3/8 | 1.73 |
BT-J-140 |
1.297 to 1.340 | 32.94 to 34.03 | 3/8 | 1.78 |
BT-J-141 |
1.340 to 1.385 | 34.03 to 35.17 | 3/8 | 1.84 |
BT-J-142 |
1.385 to 1.432 | 35.17 to 36.37 | 3/8 | 1.89 |
BT-J-143 |
1.432 to 1.480 | 36.37 to 37.59 | 3/8 | 1.95 |
BT-J-144 |
1.480 to 1.529 | 37.59 to 38.83 | 3/8 | 2.00 |
BT-J-145 |
1.529 to 1.580 | 38.83 to 40.13 | 3/8 | 2.06 |
BT-J-146 |
1.580 to 1.633 | 40.13 to 41.47 | 3/8 | 2.12 |
BT-J-147 |
1.633 to 1.688 | 41.47 to 42.87 | 3/8 | 2.19 |
BT-J-148 |
1.688 to 1.745 | 42.87 to 44.32 | 3/8 | 2.25 |
BT-J-149 |
1.745 to 1.803 | 44.32 to 45.79 | 3/8 | 2.32 |
BT-J-150 |
1.803 to 1.864 | 45.79 to 47.34 | 3/8 | 2.39 |
BT-J-151 |
1.864 to 1.926 | 47.34 to 48.92 | 3/8 | 2.46 |
BT-J-152 |
1.926 to 1.991 | 48.92 to 50.57 | 3/8 | 2.54 |
BT-J-153 |
1.991 to 2.057 | 50.57 to 52.24 | 3/8 | 2.61 |
BT-J-154 |
2.057 to 2.126 | 52.24 to 54.00 | 3/8 | 2.69 |
BT-J-155 |
2.126 to 2.197 | 54.00 to 55.80 | 3/8 | 2.78 |
BT-J-156 |
2.197 to 2.271 | 55.80 to 57.68 | 3/8 | 2.87 |
BT-J-157 |
2.271 to 2.347 | 57.68 to 59.61 | 3/8 | 2.95 |
BT-J-158 |
2.347 to 2.426 | 59.61 to 61.62 | 3/8 | 3.04 |
BT-J-159 |
2.426 to 2.507 | 61.62 to 63.67 | 3/8 | 3.14 |
BT-J-160* |
2.507 to 2.591 | 63.67 to 65.81 | 3/8 | 3.24 |
BT-J-161 |
2.591 to 2.678 | 65.81 to 68.02 | 3/8 | 3.34 |
BT-J-162 |
2.678 to 2.769 | 68.02 to 70.33 | 3/8 | 3.44 |
BT-J-163 |
2.769 to 2.860 | 70.33 to 72.64 | 3/8 | 3.54 |
BT-J-164 |
2.860 to 2.956 | 72.64 to 75.08 | 3/8 | 3.66 |
BT-J-165 |
2.956 to 3.055 | 75.08 to 77.59 | 3/8 | 3.77 |
BT-J-166 |
3.055 to 3.157 | 77.59 to 80.18 | 3/8 | 3.89 |
BT-J-170* |
3.457 to 3.557 | 87.81 to 90.35 | 3/8 | 4.38 |
| * Not available in composite material | ||||
GENERAL PURPOSE JAM NUT SOCKETS
Formed Stainless Steel Jam Nut sockets are great for non-torque specific jam nut applications. They are plated for corrosion resistance, and have drive holes to accommodate a metal rod drive tool (P/N DW75).
GENERAL PURPOSE JAM NUT SOCKETS |
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| DMC PartNumber | Fits Jam Nut Size: Inches |
Amphenol BCO Part Number |
Hex Ref. Dim: Inches |
Equivalent Composite |
CS8 |
.755 to .763 | 11-6266-3 | 3/4″ | N/A |
CS10 |
.880 to .888 | 11-6266-5 | 7/8″ | BT-J-128 |
CS12 |
1.068 to 1.077 | 11-6266-8 | 1 1/16″ | BT-J-134 |
CS14 |
1.194 to 1.204 | 11-6266-10 | 1 3/16″ | BT-J-137 |
CS16 |
1.320 to 1.331 | 11-6266-12 | 1 5/16″ | BT-J-140 |
CS18 |
1.446 to 1.457 | 11-6266-14 | 1 7/16″ | BT-J-143 |
CS20 |
1.571 to 1.580 | 11-6266-16 | 1 9/16″ | BT-J-145 |
CS22 |
1.696 to 1.708 | 11-6266-18 | 1 11/16″ | BT-J-148 |
CS24 |
1.822 to 1.835 | 11-6266-20 | 1 13/16″ | BT-J-150 |
CS22-1 |
2.011 to 2.025 | 11-6266-23 | 2″ | BT-J-153 |
CS24-1 |
2.137 to 2.151 | 11-6266-25 | 2 1/8″ | BT-J-155 |
CS32 |
2.640 to 2.687 | 11-6266-33 | 2 5/8″ | BT-J-161 & BT-J-162 |
DMC1554 |
Set Includes All 12 Sockets Listed Above And DW75 Drive Rod. | |||
ADJUSTABLE JAM NUT WRENCH
The JR700 adjustable jam nut wrench is a versatile tool for maintenance and low volume production. The rugged all steel construction makes this tool a good choice for heavy duty applications.
The tool may be adjusted to accommodate hex nuts from .75 inch to 3.25 inch (across flat) dimensions. The maximum working depth is 1.0 inch. This range accommodates most common connectors.
A standard 3/8 inch drive torque tool may be used in conjunction with this tool to limit the possibility of overtightening. If torque values require close tolerance accuracy, direct reading socketsare recommended.
TORQUE CONVERSION CHARTFOR JR700 TOOL USED WITH BT-ST-300D* |
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Diameter of
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DESIRED TORQUE VALUE (in-lbs) (“D*”) |
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40 |
60 |
80 |
100 |
120 |
140 |
160 |
180 |
200 |
|
0.50″ |
22 | 33 | 45 | 56 | 67 | 78 | 89 | 100 | 111 |
0.75″ |
23 | 34 | 45 | 56 | 68 | 79 | 90 | 101 | 113 |
1.00″ |
23 | 34 | 45 | 57 | 68 | 80 | 91 | 102 | 114 |
1.50″ |
23 | 35 | 47 | 58 | 70 | 82 | 93 | 105 | 116 |
1.75″ |
24 | 35 | 47 | 59 | 71 | 83 | 94 | 106 | 118 |
2.00″ |
24 | 36 | 48 | 60 | 72 | 84 | 95 | 107 | 119 |
2.25″ |
24 | 36 | 48 | 60 | 73 | 85 | 97 | 109 | 121 |
2.50″ |
24 | 37 | 49 | 61 | 73 | 86 | 98 | 110 | 122 |
2.75″ |
25 | 37 | 50 | 62 | 74 | 87 | 99 | 111 | 124 |
3.00″ |
25 | 38 | 50 | 63 | 75 | 88 | 100 | 113 | 125 |
3.25″ |
25 | 38 | 51 | 63 | 76 | 89 | 101 | 114 | 127 |
TORQUE READING ON INSTRUMENT (“C*”) |
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| *Formula can be found here. | |||||||||