Shenyang Liming Mechanical Component Factory >> 30X3.5 Wire Thread Insert Fasteners in Plastic Bag

30X3.5 Wire Thread Insert Fasteners in Plastic Bag

30X3.5 Wire Thread Insert Fasteners in Plastic Bag
Price: US $ 0.66/Piece
Trade Terms: FOB,CIF,EXW
Min Order: 100/Piece
Pay Type: T/T
Wire thread insert is a new kind of fastener. It is a new technique to increase strength inner thread and repair it. It is usually forming cool rolling stainless steel wire with high strength, high accuracy and high smooth finish. It is the concentric for inner and outer screw thread. Wire thread insert has been assembled to be a high precision inner screw thread according to the relative standard, its varied capability is much better than the inner screw thread which is directly formed by thread wimble.
 
The accuracy of the well-assembled wire thread inserts inner screw thread hole will lie on the making tolerance of its section form and the tolerance scope of its assembled bottom holes screw thread. The latter will mainly lie on the tapping precision of its formed bottom hole, it is usually formed 6H grade, when the precision high, it will be the tolerance scope within 5H,4H grade, the British uniform standard screw thread precision is 2B,3B wire thread insert users may choose the specialized thread wimble ,the way of tapping(hand tapping, machine tapping) and the lubricating fashion etc according to their required tolerance scope, they will be assuring to meet esteemed your inspected precision and your use requirements.

Free-running thread insert notched(GJB119.1A-2001,HB5513-96,GB/T24425.1-2009),it is a basic form of wire thread insert, and it is a most common type in its application.

Free-running thread insert unnotched (GJB119.2A-2001,HB5514-96,GB/T24425.1-2009) for blind hole or deep hole, when the screw was screwed down, its end would not touch the installing handle of wire thread insert, its screw thread hole could be selected the length of wire thread insert will be longer than the screw nail itself.

The Standard of Wire Thread Inserts
Before 2010, thread inserts in China are in accordance with Aerospace Standard (HB series in China) and military standard (GJB series in China in order to bridge a gap in the National Standard, Standardzation Administration of the People's Republic of China / Fastener TC(SAC/TC85) authorizes our factory to establish the National Standard for wire thread inserts(GB/T 24425.1~GB/G24425.6-2009) in 2008. Mr. Shi Wenxiang, the director of our factory, drafts the standard which includes "General type wire thread inserts" "General type wire thread inserts for blind hole" "Prevailing torque type wire thread inserts" "Prevailing torque type wire thread for blind hole" "International thread for wire thread inserts" and "Specification for wire thread inserts, which have been issued officially on March 1st, 2010.

Ring Gauge Measuring "B" Value
Our factory makes a key breakthrough in gauging of "B" value in wire thread inserts with rich experience of many years. And we develop a ring gauge to make precision measurement of "B" value on the basis of abundant theoretical principle.
"B" value ring gauge plays an important role in manufacturing and testing of wire thread inserts, which gives an essential definition to their manufacturing and test method as well as pass - rate standard by its exact data.


                                                                                      Parameter Table - Metric Thread Inserts Selection Guide                                                                                                                   Unit: mm
(Nominal
Dia.)   
D
(Thread
Pitch)
P
N(Number of coils in free state ±1/4 coil)
468101214161820222426
L(Insert Length When Installed)
20.42.19 3.09 3.98 4.88 5.78







2.50.452.48 3.49 4.51 5.52 6.53 7.55






30.52.73 3.85 4.97 6.08 7.20 8.32 9.43





40.73.77 5.31 6.85 8.38 9.92 11.46 12.99





50.84.32 6.08 7.84 9.60 11.36 13.12 14.88





615.36 7.54 9.72 11.90 14.08 16.26 18.44





71
7.55 9.73 11.92 14.10 16.28 18.47 20.65




81.25
9.42 12.15 14.87 17.59 20.32 23.04 25.76




101.5
11.27 14.52 17.78 21.03 24.29 27.54 30.80




121.75
12.87 16.57 20.28 23.99 27.69 31.40 35.10




142
14.67 18.89 23.18 27.34 31.56 35.79 40.01 44.23



162
14.86 19.14 23.43 27.71 32.00 36.28 40.57 44.86 49.14


182.5
18.33 23.60 28.88 34.15 39.43 44.70 49.98 55.26



202.5
18.44 23.75 29.07 34.38 39.69 45.00 50.32 55.63 60.94


222.5
18.72 24.13 29.54 34.94 40.35 45.78 51.17 56.57 61.98 67.39

243
22.01 28.34 34.68 41.02 47.35 53.69 60.02 66.36 72.70


273

28.64 35.05 41.46 47.87 54.28 60.69 67.10 73.51 79.92

303.5

33.19 40.62 48.04 55.46 62.39 70.31 77.73 85.16 92.58

333.5

33.04 40.42 47.81 55.19 62.58 69.96 77.35 84.73 92.12 99.50
364

37.83 46.29 54.75 63.21 71.67 80.13 88.59 97.05 105.50 113.96
394

37.78 46.22 54.66 63.11 71.55 80.00 88.44 96.88 105.33 113.77
Note: 1.N (Number of coils in free state) can be odd number or non-integer.
2.L (Insert Installed Length) is for your reference.



                                                                                                                                           (Continued)
(Nominal
Dia.)  
D
(Thread
Pitch)
P
N(Number of coils in free state ±1/4 coil)
6810121416182022242628303234363840424446485052
L (Insert Length When Installed)
817.599.7811.9814.1716.3718.5620.7622.9525.15














101
9.8512.0614.2716.4918.720.9123.1225.3327.5529.76












101.259.5412.3115.0717.8320.623.3626.1328.8931.85














121.511.2614.5217.7721.0224.2827.5330.7834.0337.28














141.511.314.5717.8421.1124.3827.6530.9134.1837.45














161.5
14.6817.9721.2724.5627.8631.1534.4537.7441.04













181.5

18.0621.3724.682831.3134.6237.9341.2444.56












201.5

17.9521.2424.5327.8231.1134.437.6940.9844.2747.5650.85










202
19.1523.4427.7332.0236.3140.644.8849.1753.4657.7562.04











221.5


21.624.9628.3131.663538.3641.7145.06












222
19.4923.8628.2332.636.9741.3445.7150.0854.4658.8363.267.57










241.5


21.624.9528.331.653538.3541.745.0548.4











242

24.1228.5432.9737.3941.8146.2450.6655.0859.5163.9368.3672.78









271.5



24.9928.3431.735.0638.4141.7745.1248.4851.8355.19









272

24.1928.6333.0737.5141.9546.3950.8355.2759.7164.1368.5873.0277.4681.9







301.5




28.2931.6434.9938.3441.6945.0448.3951.7455.0958.4461.79







302


28.5132.9337.3541.7746.1950.6155.0359.4563.8768.2872.777.1281.5485.9690.34





331.5





31.634.9538.2941.6444.0848.3251.6755.0158.3661.765.05






332



32.9237.3441.7546.1750.595559.4263.8468.2672.6877.0981.5185.9390.3494.7699.18



362



32.9137.3341.7446.1650.5754.9959.4163.8268.2472.6577.0781.4885.990.3294.7399.15103.56107.98

363

35.4541.9448.4354.9361.4267.9170.480.8987.3893.87100.36106.85









392




37.3241.7346.1550.5654.9759.3963.868.2272.6377.0581.4685.8890.2994.7199.12103.53107.95112.36116.78
393

35.3441.8148.2854.7561.2167.6870.180.6287.0993.56100.02106.49112.96119.43







Note: 1.N (Number of coils in free state) can be odd number or non-integer.
           2.L (Insert Installed Length) is for your reference.






































 



                               General-purpose Wire Thread Insert Specifications-Metric
Nominal Thread Size D(dia.)*P(pitch)"Q"Nominal LengthN(number of coil)
XDL(mm)
ST2*0.41D22.9
1.5D34.7
2D46.5
2.5D58.3
3D610.1
ST2.5*0.451D2.53.6
1.5D3.85.9
2D58.2
2.5D6.310.5
3D7.512.8
ST3*0.51D34.2
1.5D4.56.8
2D69.4
2.5D7.512
3D914.6
ST4*0.71D44
1.5D66.6
2D89.1
2.5D1011.7
3D1214.2
ST5*0.81D54.4
1.5D7.57.1
2D109.9
2.5D12.512.6
3D1515.3
ST6*11D64.3
1.5D96.9
2D129.6
2.5D1512.2
3D1814.9
ST8*1.251D84.8
1.5D127.7
2D1610.6
2.5D2013.5
3D2416.5



ST10*1.51D105.0
1.5D158.1
2D2011.2
2.5D2514.2
3D3017.3
ST12*1.751D125.3
1.5D188.4
2D2411.6
2.5D3014.8
3D3618.0
ST14*21D145.4
1.5D218.7
2D2811.9
2.5D3515.2
3D4218.4
ST16*21D166.3
1.5D2410.0
2D3213.7
2.5D4017.5
3D4821.2
ST18*2.51D185.6
1.5D279.0
2D3612.3
2.5D4515.7
3D5419.0
ST20*2.51D206.5
1.5D3010.0
2D4013.8
2.5D5017.5
3D6021.2
ST22*2.51D226.9
1.5D3311.0
2D4415.0
2.5D5519.0
3D6623.0
ST24*31D246.3
1.5D3610.0
2D4813.7
2.5D6017.5
3D7221.2
Note: ST is a short for "Standard", which equals to FR(free running).

All sizes of wire thread inserts can be customized according to the requirements or the related international standards such as BS, ANSI, DIN, etc. from the clients.



Installation of Wire Thread Inserts

Drilling
Aiguille's diameter of drilling should be selected first before thread processing. The principle is the thread internal diameter of screw hole should be accordance with relative standards after tapping. Select different aiguille's diameter for the different materials. The above table shows the corresponding aiguille's diameter and approximation for regular sizes in general condition.
D aigulles= d+(0.2~0.3)P(d:standard external screw thread external diameter P:pitch)

Tapping
Tapping with special screw tap of wire thread insert. Check with the corresponding screw control plug gauge whether the screw hole meet the precision requirements after tapping. This step is necessary especially a new screw tap starts to use or to use an old one has been wore and tore.

Inserting
Wire thread insert makes use of an expert tool to lock the installing handle, by circumgyrating the installing handle, make its diameter to be shorter and spindle into the screw hole along screw thread line of the screw hole. Our factory can supply three kinds of specific split spindle inserting tools according to customer's requirement.

Tang Breaking Off
When select a thread insert with notch, we should break off the installing handle by using a tangles tool. We can supply rebounded tangless tool, which can prevent the conducing last buckle's distortion of the wire thread insert when we break off the installing handle. The last buckle of wire thread insert should not be disengaged from the teeth groove of the internal screw thread, and no transformation or burrs after tangless.

Prod Model: LGST30X3.5
Markets: North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Size: 30X3.5
Technical Specifications: GB/T, Gjb, Hb, ANSI, BS, DIN, etc.
Material: SUS 304, or Clients Require
Type: Free Running Thread Insert
Usage: Auto, Electron, Machine, Aerospace, etc.
Certification: Diac, Bac, SGS
Surface Finishing: Original/Coating
Customized: Non-Customized or as Customized
The leading enterprise, Shenyang Liming Mechanical Component Factory, the largest one in China which specializes in manufacture of various specifications and sizes of wire thread inserts and the matched repair kits as well as metal piston rings for aero engines. We have certified by ISO9001-2000 International Quality System in 2002, and got the honor of "The Best Honesty Corporation in Liaoning Province" from 2005 to 2007, and obtained the certificate of "War Industry Product" in 2010.

Mr. Shi Wen Xiang, the director of our factory, has designed and developed the first screw thread inserts of China in 1965, also draw up and compiled the first screw thread inserts standard of China and related standard HB5513-5516-80. Because of the two achievements in scientific research, he wins rewards for progress in science and technology in 1979 and 1980. On 1st March 2010, "the national standard of screw thread inserts" compiled by us and issued formally.

Director Shi Wenxiang organizes the science research and production of wire thread insert in person for a dozen years. Our products have gone through tests from the important military field for years, and widely used in the fields, such as the "Shenzhou VI" "Shenzhou VII" spacecraft, "Chang'e I" satellite, missiles, etc. The quality is in leader position. With years of hard work, we have got more than 20 national patents. We offer parts for many military enterprises, including Beijing satellite manufacture Factory, Shanghai spaceflight manufacture Factory, Shanghai 800 Institution, Beijing Xinghang Mechanical-electrical Equipment Factory, Xi'an Aero-engine Group Ltd. We also supply the products to the overseas group company, e. g. American General Motors, and Hitachi, etc.

With the developing of helical thread insert, we expanded the application of products in civilian field. At present, our products are widely used in auto, electron, machinery, shipbuilding, communication, aerospace industry and so on. In future, we will continually satisfy our clients with the perfect products and best services.

Welcome inquiry and contact us, if you are in need of the products that we are producing. We sincerely hope to cooperate with your esteemed company, and establish long term relationships that are mutually beneficial.

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