Overview Product Description UNF A2 Stainless Steel Socket Cap Head Bolts 1/2" Thread size 20tpi A2 Stainless Steel grade 3/8" Allen key size Product Videos Custom Field Product Reviews Write a Review Write a Review × 1/2" UNF A2 Stainless Steel Socket Cap Head Bolts Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *