Our t-slot bolts are made of high-quality materials, ensuring excellent strength and corrosion resistance. These bolts feature a unique T-shaped head that fits snugly into the T-slot to prevent the bolt from turning and provide a secure hold. T-slot bolts are specially designed to fit into T-slots on machine tool tables, providing secure clamping and positioning of workpieces. Our t-slot bolts are a popular choice among customers for their reliable performance and durability. Ordinary washers will just cave in and will not be capable of using the full force of your clamping studs.At Ningbo Zhenkun Machinery Co., Ltd., we offer a wide range of T Slot Bolts to meet various industrial requirements. I do advise either making or buying some heavy,1/8' thick hardened steel washers to place under the nuts you are tightening down the vise with. I haven't had trouble with the vise walking on the Harrison,and it is a very powerful,geared head mill that can move more metal than the Bridgeport. I had to pay much more for a 3/8' set for my Harrison universal mill because they make fewer sets of those. Unfortunately,the 1/2' stud size sets are much cheaper than the 3/8' sets because they are made for Bridgeport size machines,and are much more common. I was able to buy the identical set on sale from Enco for about $55.00 several years ago. They had a Teco set at Fastenal that was $250.00. A proper,quality clamp set like a Teco has mjuch better,properly hardened T nuts and studs in it that can take a lot more torque. Their threads get distorted and pulled sideways. If your clamping set has only 3/8' bolts,and the T nuts fit your table,the studs are the maximum size that will fit through your table's slots.Ĭheap T bolts and nuts aren't really as strong as they should be anyway. Of course,if the T nuts are directly beneath the slots in the vise,as they should be,the studs will only be compressing the cast iron of the table between the T nuts and the vise AS IT SHOULD.

How many tons of force do you need to hold the vise down? And,how many tons of force does it take to jerk a hole in your T slot?

How t slot bolts work