1/2-13 × 8-1/2" مسامير نقل | درجة A307، فولاذ مطلي بالزنك (20 / عبوة)

The square neck grabbed perfectly into my treated lumber, so these bolts didn't spin at all while I tightened the nuts. Zinc plating looks clean and held up fine during a few hours of rain last weekend.

Had a project that needed these exact carriage bolts and the zinc plating on this batch was uniform with no rough spots. The 8-1/2 inch length worked perfectly for the heavy beam I was fastening, and the square neck seated securely without spinning.

The square neck grabbed perfectly into the wood on my deck project, no spinning at all. These 8-1/2 inch carriage bolts feel solid and the rounded head looks clean once installed.