Dowel pins are solid

with Type 316 stainless steel construction

3/4-10 x 4 1/4 Hex Cap Screw SS 316 (A4)

3/8 x 2 Dowel Pin 18-8 (A2) Stainless Steel

#10-32 x 1/4 Socket Head Cap Screws Thermal Black Oxide Alloy Steel Domestic USA - Bulk (5000) 7/16-20 Grade 5 Hex Cap Screws Zinc Plated - Domestic USA Dowel pins are solid#10 32 x 1 4 Socket Head Cap Screws Thermal Black Oxide Alloy Steel Domestic USA Bulk (5000) Socket Cap Screws with Thermal Black Oxide finish are made in the USA from durable alloy steel for superior strength and reliability. Featuring a hex drive and corrosion resistant coating, ideal for high performance and structural applications.