Code listed for cracked and uncracked concrete, and masonry applications, the Strong-Bolt 2 wedge-type expansion anchor is an optimal choice for high-performance even in seismic and high-wind conditions. Dual undercutting embossments on each clip segment enable secondary expansion should a crack form and intersect the anchor location; this feature significantly increases the ability of Strong-Bolt 2 to carry load if the hole expands.
 
	
		
			
STB2-37234
		
		
			
STB2-37300
		
		
			
STB2-37312
		
		
			
STB2-37334
		
		
			
STB2-37500
		
		
			
STB2-37700
		
	

 
	
		
			
Strong-Bolt 2 Diameter (in.)
			
Drill Bit Size (in.)
			
Min. Fixture Hole (in.)
			
Wrench Size (in.)
			
Concrete Installation Torque (ft.-lbf.) Carbon Steel
			
Concrete Installation Torque (ft.-lbf.) Stainless Steel
		
		
			
1/4
			
1/4
			
5/16
			
7/16
			
4
			
4
		
		
			
3/8
			
3/8
			
7/16
			
9/16
			
30
			
30
		
		
			
1/2
			
1/2
			
9/16
			
3/4
			
60
			
65
		
		
			
5/8
			
5/8
			
11/16
			
15/16
			
90
			
80
		
		
			
3/4
			
3/4
			
7/8
			
1 1/8
			
150
			
150
		
		
			
1
			
1
			
1 1/8
			
1 1/2
			
230
			
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