William Sellers

William Sellers (September 19 1824 – January 24 1905) was an industrialist and inventor known for proposing the design for the American standard screw thread. Born in Upper Darby, Pennsylvania, Sellers formed a machine company in Philadelphia in 1886, and made improvements in the process for making screw threads and nuts.

References

• http://www.invent.org/hall_of_fame/1_1_6_detail.asp?vInventorID=363
• http://encyclopedia.jrank.org/Cambridge/entries/085/William-Sellers.html