C. Sherman Johnson T-Style Jaw/Jaw Open Body Turnbuckle - 1/4-28 Thread Size. The forged silicon bronze body coupled with their integral toggle jaw provides positive locking and ease of adjustment.Forged silicon bronze bodies with 316 stainless ends offer a great non-galling combination. Integral toggle jaw eliminates the need for a separate rigging toggle. Specifications for C. Sherman Johnson T-Style Jaw/Jaw Open Body Turnbuckle: Manufacturer: C. Sherman Johnson Application: Outdoor Fabric/Material: Steel Color: Silver Attachment Type: Screw Package Contents: C. Sherman Johnson T-Style Jaw/Jaw Open Body Turnbuckle C. Sherman Johnson 42-110: T-Style Jaw/Jaw Open Body Turnbuckle - 1/4-28 Thread Size