| Part No. |
Diameter Ref. |
A |
B |
C |
LB90S-16
|
1/2"
|
12.52 - 13.08
|
22.10 - 23.88 |
5.72 - 6.07 |
LB90S-20
|
5/8"
|
15.67 - 16.31
|
27.76 -30.05 |
7.21 - 7.62 |
LB90S-24
|
3/4"
|
18.82 - 19.00
|
33.32 - 35.99 |
8.89 - 9.65 |
LB90S-28
|
7/8"
|
22.00 - 22.73
|
38.89 - 42.04 |
10.06 - 10.92 |
LB90S-32
|
1 "
|
25.15 - 25.96
|
- |
- |
LB90S-36
|
1-1/8 "
|
27.89 - 29.18
|
- |
- |
LB90S-44
|
1-3/8 "
|
34.29 - 35.56
|
62.18 - 65.33 |
16.46 - 17.86 |
| Grip No. |
Grip Range |
1/2 "(16) |
5/8 " (20) |
3/4 " (24) |
7/8 " (28) |
1 " (32) |
1-1/8 " (36) |
1-3/8 " (44) |
| D |
E | D |
E |
D |
E |
D |
E |
D |
E |
D |
E |
Grip Range |
| 4 |
6.35 - 12.70 |
30.81 |
80.57 |
36.4 |
92.86 |
38.56 |
105.56 |
- |
- |
- |
- |
- |
- |
UP TO 34.25 " Call For Data |
| 8 |
12.70 - 19.05 |
37.16 |
86.92 |
42.75 |
99.21 |
44.91 |
111.91 |
48.79 |
119.08 |
52.65 |
136.53 |
- |
- |
| 12 |
19.05 - 25.40 |
43.51 |
93.27 |
49.1 |
105.56 |
51.26 |
118.26 |
55.14 |
125.43 |
59 |
142.88 |
- |
- |
| 16 |
25.40 - 31.75 |
49.86 |
99.62 |
55.45 |
111.91 |
57.61 |
124.61 |
61.49 |
131.78 |
65.35 |
149.23 |
- |
- |
| 20 |
31.75 - 38.10 |
56.21 |
105.97 |
61.8 |
118.26 |
63.96 |
130.96 |
67.84 |
138.13 |
71.7 |
155.58 |
- |
- |
| 24 |
38.10- 44.45 |
62.56 |
112.32 |
68.15 |
124.61 |
70.31 |
137.31 |
74.19 |
144.48 |
78.05 |
161.93 |
- |
- |
| 28 |
44.45 - 50.80 |
68.91 |
118.67 |
74.5 |
130.96 |
76.66 |
143.66 |
80.54 |
150.83 |
84.4 |
168.28 |
- |
- |
| 32 |
50.80 - 57.15 |
75.26 |
125.02 |
80.85 |
137.31 |
83.01 |
150.01 |
86.89 |
157.18 |
90.75 |
174.63 |
- |
- |
| 36 |
57.15 - 63.50 |
81.61 |
131.37 |
87.2 |
143.66 |
89.36 |
156.36 |
93.24 |
163.53 |
97.1 |
180.98 |
- |
- |
| 40 |
63.50 - 69.85 |
87.96 |
137.72 |
93.55 |
150.01 |
95.71 |
162.71 |
99.59 |
169.88 |
103.45 |
187.33 |
- |
- |
| 44 |
69.85 - 76.20 |
94.31 |
144.07 |
99.9 |
156.36 |
102.06 |
169.06 |
105.94 |
176.23 |
109.8 |
193.68 |
- |
- |
| 48 |
76.20 - 82.55 |
100.66 |
150.42 |
106.25 |
162.71 |
108.41 |
175.41 |
112.29 |
182.58 |
116.15 |
200.03 |
- |
- |
| 52 |
82.55 - 88.90 |
107.01 |
156.77 |
112.6 |
169.06 |
114.76 |
181.76 |
118.64 |
188.93 |
122.5 |
206.38 |
- |
- |
| 56 |
88.90 - 95.25 |
113.36 |
163.12 |
118.95 |
175.41 |
121.11 |
188.11 |
124.99 |
195.28 |
128.85 |
212.73 |
133.35 |
217.50 |
| 60 |
95.25 - 101.6 |
119.71 |
169.47 |
125.3 |
181.76 |
127.46 |
194.46 |
131.34 |
201.63 |
135.2 |
219.08 |
139.7 |
223.85 |
| 64 |
101.60 - 107.95 |
126.06 |
175.82 |
131.65 |
188.11 |
133.81 |
200.81 |
137.69 |
207.98 |
141.55 |
225.43 |
146.05 |
230.20 |
| 68 |
107.95 - 114.30 |
132.41 |
182.17 |
138 |
194.46 |
140.16 |
207.16 |
144.04 |
214.33 |
147.90 |
231.78 |
152.4 |
236.55 |
| 72 |
114.30 - 120.65 |
138.76 |
188.52 |
144.35 |
200.81 |
146.51 |
213.51 |
150.39 |
220.68 |
154.25 |
238.13 |
158.75 |
242.90 |
| 76 |
120.65 - 127.00 |
145.11 |
194.87 |
150.7 |
207.16 |
152.86 |
219.86 |
- |
- |
160.6 |
244.48 |
165.1 |
249.25 |
| 80 |
127.00 - 133.35 |
151.46 |
201.22 |
- |
- |
- |
- |
- |
- |
166.95 |
250.83 |
171.45 |
27.00 |
| 84 |
133.35 - 139.70 |
- |
- |
- |
- |
- |
- |
- |
- |
173.3 |
28.58 |
177.8 |
33.35 |
| 88 |
139.70 - 146.05 |
- |
- |
- |
- |
- |
- |
- |
- |
179.65 |
34.93 |
184.15 |
39.70 |
| 92 |
146.05 - 152.40 |
- |
- |
- |
- |
- |
- |
- |
- |
186.00 |
41.28 |
190.5 |
46.05 |
1. Superior Design with Countersunk Profile
The PI Large Diameter LockBolt CSK Head features a uniquely engineered countersunk head that provides a flush finish, making it ideal for applications requiring smooth and unobtrusive surfaces. This design is widely utilized in aerospace, railway systems, and marine-grade installations where aerodynamics or aesthetics are a priority. At Pankaj International, we ensure our lock bolts meet the highest standards of durability and design excellence, combining function and form in every product.
2. Engineered for High-Load Applications
Built to handle extreme stress and high-impact conditions, this PI lockbolt excels in projects requiring structural integrity. Whether securing heavy machinery, steel beams, or bridge components, the PI Large Diameter Lock Bolt CSK Head ensures a vibration-resistant connection. Designed with a focus on performance, it offers unmatched shear and tensile strength for heavy-duty applications.
3. Corrosion Resistance for Challenging Environments
Crafted from stainless steel or zinc-coated alloys, these PI lock bolts offer exceptional resistance to corrosion, making them suitable for harsh environments like marine docks and outdoor constructions. The advanced finishes enhance durability, ensuring the product maintains its integrity even in weather-exposed conditions or chemical-prone settings.
4. Applications Across Industries
The versatility of the PI Large Diameter Lock Bolt CSK Head makes it a preferred choice in multiple sectors, including:
- Construction: Ideal for joining heavy steel plates or beams.
- Railway: Perfect for fastening rail joints and sleepers.
- Aerospace: Used in structures requiring smooth surfaces for aerodynamic efficiency.
- Marine: Resistant to saltwater corrosion, suitable for shipbuilding and ports.
5. Technical Drawings and Customization Support
For detailed specifications, Pankaj International provides comprehensive technical drawings and dimension tables, ensuring precise selection for specific projects. We also offer customization options to meet unique client requirements, further cementing our position as a leader in PI lockbolt manufacturing.
6. Why Choose Pankaj International?
As a leading supplier of PI lockbolts, we prioritize innovation, quality, and customer satisfaction. With a global reputation for excellence, Pankaj International provides fasteners designed for superior performance, meeting the diverse demands of industries worldwide. Our commitment to international standards and customized solutions makes us a trusted partner for all fastening needs.