STAM 101: Gid

The sheets of klaf in Sifrei Torah, nevi’im, and megilos are sewn together with “gid”, which is a thread spun from the sinew of a kosher animal (usually a cow). Gid is also used in the production of tefilin – to sew together the upper and lower parts of the titura (the base of the batim). According to some opinions, Gid must be made lishma, by a Torah-observant adult Jew (male or female). Like other materials used to create STAM, gid should ideally have a hechsher certifying that it came from a kosher source and was made in accordance with halacha.

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