Parts are designed & manufactured to SAE J490, Type G, and either Style 2 or Style 4 specifications.
Ball studs are made from 1045 steel, surface hardened.
Bodies are made from 1045 steel, surface hardened.
SPG & SRG are .0003 minimum zinc plated & dichromate treated for corrosion resistance.
Ball sockets are packed with lubricant.
Left hand thread available in all sizes. (Add suffix "LH" to part number.) Metrics are available upon request.
SERIES SPG BALL JOINTS are swaged metal designs with a 1045 steel carbon body and ball stud both surfaces hardened for good pull out characteristics and wear resistance. The Type SPG is provided with a weather resistant rubber dirt shield for protection against contaminants.
SERIES SRG BALL JOINTS are similar to our SPG SERIES in that it features a swaged metal design with a 1045 carbon body and ball stud both surfaces hardened and incorporates a retaining ring feature holding the ball stud for excellent pull-out characteristics and wear resistance (substantially higher than our SPG series units). The SRG series is provided with a weather resistant dirt shield for protection against contaminants. The retaining ring is made from galvanized wire, stress relieved.