Thread Rite Screw Products - Fasteners Thread Rite Screw Products - Fasteners Thread Rite Screw Products - Fasteners Thread Rite Screw Products - Fasteners Thread Rite Screw Products - Fasteners
Thread Rite Screw Products - Fasteners Thread Rite Screw Products - Fasteners
Thread Rite Screw Products - Fasteners
Thread Rite Screw Products - Fasteners
 Thread Rite Screw Products - Fasteners
Authorized Stocking Distributor for: POP Fasteners • ITW Shakeproof • ITW Fastex • ITW Bee Leitzke • SPS technologies • Rotor Clip • HEYCO • Specials • Contact Thread Rite Screw Products - Fasteners

u nutsPins

U Nuts

 

U Nuts

U Nuts


Screw Size


Part
Number


Form
A



B



C



D



E



F



G



H



I

Panel
Thickness
Range
Panel Hole Diameter Minimum
Hole
Center to Edge

Upper leg length



Width


Metal Thickness
4B
UN-630050-1
x
                
.025 - .032
5/32
3/16
3/8
5/16
.020
6-32
UN-630105-1
x
x
x
            
.035 - .040
5/32
5/32
3/8
5/16
.018
6-32
UN-630110-1
x
  
x
            
.040 - .051
9/32
5/32
23/64
5/16
.018
6-32
UN-630165-1
x
x
x
            
.035 - .040
5/32
5/32
5/8
5/16
.018
6-32
UN-630114-1
x
x
x
    
x
      
.110 - .125
5/32
11/64
23/64
1/2
.018
6-32
UN-630120-1
x
x
              
.110 - .125
5/32
11/64
23/64
1/2
.018
6-32
UN-637165-11,7
x
                
.032 - .060
3/16
11/64
3/8
5/16
.018
6-32
UN-630125-1
x
x
x
            
.015 - .025
3/16
3/16
3/8
5/16
.018
6-32
UN-637055-1
x
    
x
  
x
      
.072 - .081
17/64
3/16
7/16
1/2
.018
6-32
UN-637220-1
x
x
x
            
.140 - .156
5/32
3/16
27/64
9/32
.018
6-32
UN-637215-1
x
  
x
            
.140 - .150
3/16
3/16
27/64
9/32
.018
6-32
UN-630172-1
x
    
x
  
x
      
.025 - .040
3/16
7/32
31/64
1/2
.018
6-32
UN-630150-1
x
    
x
          
.025 - .040
1/4
7/32
1/2
1/2
.018
6-32
UN-630171-1
x
    
x
  
x
      
.045 - .062
3/16
7/32
31/64
1/2
.018
6-32
UN-630144-1
x
      
x
        
.110 - .130
3/16
1/4
17/32
5/16
.018
6-32
UN-630146-13,6
x
                
.110 - .130
3/16
1/4
17/32
5/16
.018
6-32
UN-630142-1
x
      
x
        
.135 - .150
3/16
17/64
33/64
5/16
.018
6-32
UN-630155-1
x
x
              
.185 - .195
5/32
9/32
19/32
5/16
.018
6-32
UN-630013-1
x
      
x
        
.045 - .062
3/16
19/64
21/32
5/16
.018
6-32
UN-630145-1
x
    
x
          
.025 - .040
3/16
15/32
13/16
5/16
.018
6-32
UN-630119-1
x
      
x
        
.025 - .040
3/16
15/32
13/16
5/16
.018
6-32
UN-630116-1
x
                
.025 - .040
3/16
31/64
53/64
5/16
.018
6A
UN-630500-1
x
    
x
  
x
      
.072 - .092
17/64
3/16
7/16
1/2
.025
6A
UN-630205-1
x
    
x
  
x
      
.032 - .040
1/4
7/32
26/64
1/2
.025
6A
UN-630210-1
x
    
x
    
x
    
.045 - .062
3/16
7/32
15/32
1/2
.028
6A,B
UN-630273-1
x
    
x
  
x
      
.025 - .040
3/16
7/32
31/64
1/2
.025
6A,B
UN-630270-1
x
    
x
  
x
      
.040 - .062
3/16
7/32
15/32
1/2
.025
6A,B
UN-630501-1
x
      
x
        
.025 - .040
3/16
19/64
41/64
5/16
.025
6A,B
UN-630215-11
x
  
x
  
x
x
      
.032 - .064
7/32
5/16
17/32
1/2
.025
6A,B
UN-630218-1
x
        
x
      
.025 - .040
3/16
15/32
13/16
5/16
.025
6A,B
UN-630217-1
x
      
x
        
.025 - .040
3/16
15/32
13/16
5/16
.025
6B
UN-630601-1
x
      
x
        
.051 - .064
17/64
3/16
15/32
1/2
.025
6B
UN-630730-1
x
    
x
  
x
      
.051 - .064
17/64
3/16
15/32
1/2
.025
8-32
UN-631010-1
x
  
x
            
.051 - .064
17/64
3/16
15/32
1/2
.025
8-32
UN-630995-1
x
  
x
            
.014 - .020
7/32
3/16
3/8
5/16
.018
8-32
UN-631001-1
x
  
x
            
.025 - .051
7/32
3/16
3/8
5/16
.018
8-32
UN-631005-1
x
    
x
  
x
      
.072 - .081
17/64
3/16
7/16
1/2
.018
8-32
UN-631017-1
x
                
.031 - .051
7/32
1/4
17/32
7/16
.018
8-32
UN-631002-1
x
    
x
  
x
      
.030 - .065
13/64
13/64
33/64
1/2
.018
8-32
UN-631015-1
x
    
x
  
x
      
.010 - .040
1/4
7/32
29/64
1/2
.018
8-32
UN-631073-1
x
    
x
  
x
      
.025 - .040
7/32
15/64
17/32
1/2
.018
8-32
UN-630997-1
x
    
x
  
x
      
.025 - .040
7/32
15/64
17/32
1/2
.025
8-32
UN-631016-1
x
    
x
  
x
      
.017 - .040
7/32
15/64
33/64
1/2
.018
8-32
UN-631071-1
x
    
x
  
x
      
.045 - .062
7/32
15/64
17/32
1/2
.018
8-32
UN-630998-1
x
                
.050 - .066
7/32
17/64
35/64
5/16
.018
8/32
UN-631020-1
x
  
x
  
x
  
x
    
.088 - .098
7/32
5/16
43/64
13/32
.018
8-32
UN-631011-1
x
    
x
          
.045 - .062
7/32
21/64
43/64
13/32
.018
8-32
UN-631055-1
x
    
x
          
.100 - .125
9/32
7/16
53/64
7/16
.020
8-32
UN-631003-1
x
        
x
      
.037 - .064
15/64
15/32
49/64
1/2
.018
8-32
UN-631012-1
x
      
x
        
.045 - .062
7/32
33/64
7/8
13/32
.018
8-32
UN-631062-1
x
      
x
        
.025 - .040
7/32
33/64
7/8
13/32
.018
8A,B
UN-631110-13
x
  
x
            
.090 - .098
7/32
5/32
23/64
5/16
.025
8A,B
UN-631120-1
x
      
x
x
      
.040 - .050
7/32
5/32
29/64
1/2
.028
8A,B
UN-632021-13
x
    
x
  
x
      
.072 - .092
17/64
3/16
7/16
1/2
.028
8A,B
UN-631625-1
x
    
x
  
x
      
.072 - .081
17/64
3/16
29/64
1/2
.025
8A,B
UN-631975-1
x
    
x
  
x
      
.025 - .040
7/32
3/16
33/64
1/2
.028
8A,B
UN-631974-15
x
    
x
  
x
    
x
.025 - .040
7/32
3/16
33/64
1/2
.028
8A,B
UN-631335-1
x
    
x
  
x
      
.045 - .062
9/32
3/16
33/64
1/2
.028
8A,B
UN-631691-1
x
x
  
x
  
x
      
.115 - .130
3/16
3/16
21/32
5/8
.028
8A,B
UN-632020-1
x
x
  
x
  
x
      
.030 - .045
11/64
7/32
7/16
1/2
.028
8A,B
UN-632060-1
x
    
x
  
x
      
.030 - .040
1/4
7/32
15/32
1/2
.028
8A,B
UN-631100-1
x
      
x
x
      
.035 - .050
17/64
7/32
29/64
1/2
.028
8A,B
UN-631099-1
x
      
x
x
      
.028 - .040
17/64
7/32
15/32
1/2
.020
8A,B
UN-637801-1
x
  
x
x
  
x
      
.035 - .045
1/4
7/32
17/32
1/2
.028
8A,B
UN-631972-1
x
    
x
  
x
      
.045 - .062
7/32
15/64
17/32
1/2
.028
8A,B
UN-637802-1
x
  
x
x
    
x
    
.060 - .070
1/4
15/64
33/64
1/2
.028
8A,B
UN-631976-1
x
                
.115 - .140
13/64
15/64
5/8
7/16
.025
8A,B
UN-632018-1
x
    
x
    
x
    
.017 - .031
9/32
1/4
7/16
1/2
.028
8A,B
UN-632019-1
x
    
x
          
.020 - .060
9/32
1/4
7/16
1/2
.028
8A,B
UN-632015-1
x
    
x
    
x
    
.032 - .050
9/32
1/4
29/64
1/2
.028
8A,B
UN631600-1
x
  
x
            
.057 - .062
1/4
1/4
33/64
5/16
.025
8A,B
UN-631605-11
x
                
.057 - .062
13/64
1/4
33/64
5/16
.025
8A,B
UN-631986-15
x
x
  
x
        
x
.070 - .090
17/64
1/4
39/64
7/16
.028
8A,B
UN-631402-1
x
    
x
          
.025 - .055
1/4
1/4
5/8
7/16
.025
8A,B
UN-632025-15
x
x
              
.035 - .045
3/16
17/64
15/32
1/2
.028
8A,B
UN-631977-13
x
x
              
.062 - .140
3/16
9/32
5/8
7/16
.025
8A,B
UN-631360-1
x
    
x
          
.062 - .140
7/32
9/32
41/64
7/16
.025
8A,B
UN-631337-1
x
      
x
        
.045 - .062
9/32
9/32
43/64
13/32
.028
8A,B
UN-631514-13
x
    
x
          
.050 - .090
1/4
19/64
19/32
7/16
.028
8A,B
UN-631401-13
x
    
x
          
.037 - .075
1/4
19/64
5/8
7/16
.028
8A,B
UN-632385-13,4
x
x
              
.180 - .220
1/4
19/64
21/32
7/16
.028
8A,B
UN-631354-1
x
    
x
          
.040 - .055
1/4
19/64
41/64
7/16
.028
8A,B
UN-631500-13
x
x
  
x
  
x
      
.037 - .081
3/16
5/16
5/8
9/16
.020
8A,B
UN-631981-14
x
      
x
    
x
  
.032 - .038
9/32
5/16
11/16
13/32
.028
8A,B
UN-632023-15
x
x
  
x
    
x
  
x
.025 - .040
7/32
21/64
19/32
3/8
.025
8A,B
UN-631980-1
x
      
x
        
.040 - .050
7/32
21/64
11/16
5/16
.028
8A,B
UN-631983-1
x
      
x
        
.025 - .040
7/32
21/64
11/16
13/32
.028
8A,B
UN-631984-13
x
x
  
x
          
.015 - .090
11/64
21/64
47/64
7/16
.025
8A,B
UN-631532-1
x
    
x
          
.055 - .080
9/32
13/32
23/32
7/16
.028
8A,B
UN-631979-1
x
    
x
  
x
      
.102 - .125
9/32
13/32
11/16
5/8
.028
8A,B
UN-631978-13
x
    
x
  
x
      
.030 - .125
9/32
13/32
45/64
5/8
.028
8A,B
UN-632390-1
x
    
x
  
x
      
.064 - .093
9/32
7/16
45/64
5/8
.028
8A,B
UN-631400-1
x
      
x
        
.025 - .075
7/32
15/32
7/8
13/32
.028
8A,B
UN--632397-1
x
    
x
          
.025 - .064
9/32
1/2
53/64
7/16
.028
8A,B
UN-631160-1
x
      
x
        
.025 - .040
7/32
33/64
55/64
13/32
.028
8A,B
UN-631161-1
x
      
x
        
.045 - .062
7/32
33/64
55/64
13/32
.028
8A,B
UN-637820-13,7
x
x
        
x
    
.170 - .187
7/32
35/64
7/8
5/8
.030
8A,B
UN-632399-13
x
                
.156 - .187
9/32
3/4
1-1/8
7/16
.028
8A,B
UN-631115-1
x
                
.062 - .094
9/32
53/64
1-7/32
7/16
.028
10-24
UN-632610-1
x
    
x
  
x
      
.036 - .050
9/32
1/4
29/64
1/2
.020
10-24
UN-632449-11
x
x
x
x
  
x
      
.025 - .032
9/32
1/4
1/2
1/2
.020
10-24
UN-632450-11
x
  
x
x
  
x
      
.025 - .032
9/32
1/4
1/2
1/2
.020
10-24
UN-632460-1
x
    
x
  
x
      
.025 - .040
1/4
1/4
37/64
5/8
.020
10-24
UN-632470-1
x
x
              
.115 - .130
7/32
1/4
5/8
7/16
.020
10-24
UN-632540-1
x
x
              
.025 - .094
7/32
5/16
5/8
7/16
.020
10-24
UN-632542-1
x
x
              
.025 - .094
1/4
5/16
5/8
7/16
.020
10-24
UN-632501-1
x
x
              
.025 - .062
7/32
5/16
21/32
7/16
.020
10-24
UN-632500-1
x
x
  
x
          
.025 - .062
7/32
5/16
41/64
7/16
.020
10-24
UN-632510-1
x
    
x
          
.025 - .080
5/16
5/16
5/8
7/16
.020
10-24
UN-632511-1
x
                
.025 - .080
5/16
5/16
41/64
7/16
.020
10-24
UN-632505-16
x
    
x
          
.025 - .062
5/16
5/16
41/64
7/16
.020
10-24
UN-632506-16
x
    
x
          
.025 - .081
5/16
5/16
21/32
7/16
.020
10-24
UN-632625-1
x
      
x
        
.045 - .062
1/4
23/64
3/4
3/8
.020
10-24
UN-632465-1
x
    
x
          
.050 - .078
9/32
7/16
23/32
5/8
.025
10-24
UN-632750-1
x
    
x
          
.093 - .125
7/32
7/16
13/16
7/16
.020
10-24
UN-632516-1
x
    
x
          
.025 - .064
9/32
1/2
27/32
7/16
.020
10-24
UN-632512-1
x
x
  
x
          
.025 - .064
9/32
1/2
27/32
7/16
.020
10-24
UN-632581-1
x
      
x
        
.025 - .040
1/4
9/16
61/64
3/8
.022
10-24
UN-632580-1
x
      
x
        
.045 - .062
1/4
9/16
61/64
3/8
.020
10-24
UN-632700-1
x
                
.156 - .187
9/32
3/4
1-1/8
7/16
.020
10-32
UN-632760-1
x
x
  
x
          
.055 - .065
7/32
15/64
1/2
.020
.018
10-32
UN-632805-1
x
x
              
.062 - .094
7/32
19/64
5/8
7/16
.018
10-32
UN-632165-1
x
x
              
.025 - .064
7/32
1/2
27/32
7/16
.018
10A
UN-633299-1
x
x
              
.051 - .064
9/32
7/32
15/32
1/2
.030
10A
UN-633300-1
x
    
x
  
x
      
.051 - .064
9/32
15/64
15/32
1/2
.030
10A
UN-633177-1
x
    
x
  
x
      
.023 - .050
9/32
1/4
15/32
1/2
.030
10A
UN-632461-1
x
    
x
  
x
      
.025 - .040
1/4
1/4
9/16
5/8
.030
10A
UN-633271-1
x
    
x
  
x
      
.045 - .062
1/4
1/4
9/16
5/8
.022
10A
UN-633270-1
x
    
x
  
x
      
.045 - .062
1/4
1/4
9/16
5/8
.030
10A
UN-633206-18
x
    
x
          
.025 - .081
5/16
9/32
5/8
7/16
.028
10A
UN-633207-1
x
x
              
.030 - .081
1/4
9/32
5/8
7/16
.030
10A
UN-633100-13
x
    
x
          
.081 - .094
9/32
9/32
5/8
7/16
.030
10A
UN-633216-13,4
x
x
  
x
          
.037 - .064
7/32
19/64
37/64
7/16
.030
10A
UN-633217-1
x
x
              
.180 - .220
1/4
19/64
5/8
7/16
.035
10A
UN-633201-1
x
                
.037 - .064
9/32
19/64
41/64
7/16
.030
10A
UN-366190-1
x
x
      
x
x
x
  
.040 -.050
7/32
21/64
19/32
5/8
.030
10A
UN-633209-1
x
x
  
x
          
.025 - .064
7/32
11/32
23/32
1/2
.030
10A
UN-633200-1
x
      
x
        
.025 - .062
1/4
23/64
3/4
1/2
.030
10A
UN-633220-16
x
        
x
      
.093 - .109
9/32
13/32
11/16
5/8
.028
10A
UN-633290-1
x
    
x
  
x
      
.102 - .125
9/32
13/32
45/64
5/8
.030
10A
UN-633471-1
x
x
  
x
  
x
      
.102 - .125
7/32
13/32
11/16
5/8
.030
10A
UN-633203-1
x
    
x
  
x
x
    
.064 - .093
9/32
7/16
11/16
5/8
.030
10A
UN-633170-1
x
    
x
  
x
      
.020 - .051
9/32
29/64
45/64
5/8
.030
10A
UN-633210-1
x
    
x
          
.025 - .064
9/32
1/2
53/64
7/16
.030
10A
UN-633208-1
x
      
x
        
.025 - .062
1/4
33/64
61/64
1/2
.030
10A
UN-633185-1
x
      
x
        
.025 - .040
1/4
33/64
61/64
1/2
.030
10A
UN-633230-13
x
    
x
          
.120 - .140
17/64
17/32
29/32
5/8
.030
10A
UN-633583-1
x
      
x
        
.025 - .040
1/4
9/16
61/64
1/2
.030
10A
UN-633582-1
x
      
x
        
.045 - .062
1/4
9/16
61/64
1/2
.030
10A
UN-633125-1
x
    
x
          
.040 - .064
9/32
9/16
7/8
5/8
.030
10A,B
UN-634140-1
x
      
x
    
x
  
.034 - .047
1/4
3/8
3/4
1/2
.030
10B
UN-633903-13
x
x
  
x
  
x
      
.050 - .070
7/32
3/16
27/64
1/2
.030
10B
UN-634000-1
x
    
x
  
x
      
.036 - .050
9/32
1/4
7/16
1/2
.030
10B
UN-634001-1
x
    
x
  
x
      
.036 - .050
9/32
9/32
39/64
7/16
.030
10B
UN-634401-13
x
    
x
          
.030 - .064
9/32
9/32
39/64
7/16
.030
10B
UN-633809-1
x
x
              
.109 - .125
9/32
9/32
5/8
7/16
.030
10B
UN-633815-1
x
    
x
          
.081 - .094
9/32
9/32
5/8
7/16
.030
10B
UN-634725-13
x
                
.125 - .160
9/32
9/32
41/64
7/16
.030
10B
UN-634715-13
x
    
x
  
x
      
.080 - .100
9/32
5/16
19/32
5/8
.030
10B
UN-633820-1
x
x
  
x
          
.032 - .064
7/32
11/32
23/32
1/2
.030
10B
UN-634050-1
x
x
              
.040 - .094
7/32
11/32
47/64
7/16
.030
10B
UN-633815-1
x
    
x
  
x
      
.102 - .125
9/32
13/32
45/64
5/8
.030
10B
UN-634718-13
x
    
x
  
x
      
.064 - .093
9/32
7/16
23/32
5/8
.030
10B
UN-634705-1
x
                
.078 - .094
9/32
9/16
63/64
1/2
.028
10B
UN-633240-1
x
                
.156 - .187
9/32
3/4
1-7/64
7/16
.030
12-24
UN-635625-1
x
      
x
        
.070 - .080
5/16
11/32
5/8
5/8
.022
12A
UN-635505-1
x
      
x
x
      
.043 - .060
5/16
21/64
5/8
5/8
.028
12A
UN-635502-1
x
      
x
x
      
.043 - .060
5/16
11/32
5/8
5/8
.028
1/4-20
UN-307000-13
x
x
      
x
      
.180 - .190
9/32
5/16
5/8
11/16
.025
1/4-20
UN-635635-1
x
                
.051 - .109
23/64
5/16
25/32
1/2
.025
1/4-20
UN-635610-13,6
x
                
.051 - .109
11/32
5/16
51/64
1/2
.025
1/4-20
UN-635585-1
x
    
x
          
.051 - .109
23/64
5/16
13/16
1/2
.025
1/4-20
UN-635590-13
x
                
.310 - .328
5/16
5/16
27/32
1/2
.025
1/4-20
UN-635605-1
x
                
.093 - .125
3/8
7/16
57/64
1/2
.025
1/4-20
UN-635615-13
x
x
              
.035 - .150
9/32
1/2
29/32
1/2
.025
1/4-20
UN-635602-1
x
x
              
.035 - .125
9/32
1/2
15/16
1/2
.025
1/4-20
UN-635600-13
x
                
.064 - .125
11/32
1/2
63/64
1/2
.025
1/4-20
UN-635583-11
x
  
x
            
.025 - .080
5/16
23/32
1-1/6
35/64
.025
1/4-20
UN-635584-11
x
                
.070 - .140
5/16
23/32
1-5/64
9/16
.025
1/4-20
UN-635620-1
x
x
  
x
x
        
.032 - .156
9/32
15/16
1-1/4
5/8
.025
1/4-20
UN-635630-1
x
    
x
x
        
.060 - .156
11/32
15/16
1-1/4
5/8
.025
14A
UN-635510-1
x
                
.032 - .095
23/64
5/16
25/32
1/2
.030
14A
UN-635509-1
x
                
.032 - .051
23/64
3/8
13/16
1/2
.035
14A
UN-635545-1
x
x
              
.062 - .125
9/32
1/2
31/32
1/2
.035
14A
UN-635548-13
x
    
x
          
.090 - .140
3/8
11/16
1-1/4
5/8
.035
1/4B
UN-635570-1
x
                
.051 - .109
23/64
5/16
25/32
1/2
.030
1/4B
UN-635571-1
x
                
.051 - .109
23/64
5/16
25/32
1/2
.040
1/4B
UN-635010-13,4
x
x
              
.095 - .125
9/32
5/16
13/16
1/2
.040
1/4B
UN-635513-1
x
                
.035 - .065
11/32
1/2
31/32
1/2
.025
1/4B
UN-635511-1
x
x
              
.062 - .125
9/32
1/2
31/32
1/2
.035
1/4B
UN-635512-1
x
                
.064 - .125
11/32
1/2
31/32
1/2
.035
1/4B
UN-635573-11,3
x
  
x
x
  
x
      
.050 - .070
23/64
15/16
1-9/32
3/4
.040
1/4B
UN-635572-13,7
x
x
x
  
x
x
      
.062 - .125
9/32
15/16
1-9/32
3/4
.040
5/16-18
UN-637914-11,3
x
  
x
            
.075 - .100
3/8
9/16
1-3/64
5/8
.028
5/16-18
UN-637916-13
x
                
.112 - .140
3/8
9/16
1-3/64
5/8
.028
5/16-18
UN-637920-11
x
  
x
            
.039 - .045
3/8
9/16
1-1/16
5/8
.028

Notes: U Nuts
1. Turned up corner(s) on top leg
2. Wide range panel
3. Square fold
4. Prevailing torque
5. Up-turned barb on lower leg
Full extrusion lower leg
Special; request blueprint

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