A mechanic is securing two steel plates together using a through-bolt, two flat washers, a split-ring lock washer, and a standard hex nut. In what sequential order should these hardware components and materials be assembled from the bolt head side to the nut side?
- 1Place the first flat washer onto the bolt shank flush against the bolt head
- 2Pass the bolt shank through the aligned clearance holes of the two steel plates
- 3Slide the second flat washer over the protruding bolt threads against the outer plate
- 4Install the split-ring lock washer over the threads against the second flat washer
- 5Thread and torque the hex nut onto the bolt against the lock washer
Answer
First flat washer under bolt head, passed through the joined plates, followed by the second flat washer, the split-ring lock washer, and finally the hex nut.
In standard mechanical assembly, a through-bolted joint follows a specific hardware order: the bolt head holds a flat washer to distribute pressure; the bolt passes through the workpiece; the opposite side receives a second flat washer for load distribution, followed by the split-ring lock washer to maintain tension, and finishes with the hex nut.
Step-by-Step Solution
Key Concept
Through-bolt fastener assembly stack-up sequence and washer placement rules
Estimated Time:1m 0s