Part Number: 109C4A13 (Oval head 5056-h32 alum.semi-tub) Part Number: 109C4A13-P (Oval head 5056-h32 alum. semi-tu) Part Number: 109C4A14 (Oval head 5056-h32 alum. semi-tu) Part Number: 109C4A14-P (Oval head 5056-h32 alum. semi-tu) Part Number: 109C4A14-PSTR (Oval head 5056-h32 alum. semi-tu) Part Number: 109C4A15-6 (Oval head 5056-h32 alum. semi-tu) Part Number: 109C4A16-PSTR (Oval head 5056-h32 alum. semi-tu) Part Number: 109C4A18-6 (Oval head 5056-h32 alum. semi-tu) Part Number: 109C4A18-P (Oval head 5056-h32 alum. semi-tu) Part Number: 109C4A19-6 (Oval head 5056-h32 alum. semi-tu) Part Number: 109C4A19-P (Oval head 5056-h32 alum. semi-tu) Part Number: 109C4A2 (No description) Part Number: 109C4A20-P (Oval head 5056-h32 alum. semi-tu) Part Number: 109C4A21-P (Oval head 5056-h32 alum. semi-tu)